• Book Appointment
  • 0
    cart-empty
    Your shopping cart is empty

    Login to view previously saved items or track a recent order.

  • 0
1
2
3
Shape
Shape
Clear
Carat
Carat
Clear
Color
Color
Clear
MLKJIHGFED
Clarity
Clarity
Clear
I1SI2SI1VS2VS1VVS2VVS1IFFL
Cut
Cut
Clear
FairGoodVery GoodExcellentIdeal
Price
Price
Clear
Polish
Polish
Clear
PoorFairGoodVery GoodExcellent
Symmetry
Symmetry
Clear
PoorFairGoodVery GoodExcellent
Lab
Lab
Clear
Ratio
Ratio
Clear
Advance Filters

Loose Diamonds

Browse our complete selection of loose diamonds and choose the stone that best matches your design or investment preference. This page brings together every available diamond, allowing you to compare shapes, sizes, and quality in one place before deciding on a ring setting. At Harmony Jewels, each diamond is presented with clear grading details so you can select confidently.

EXCELLENT
★★★★★
0 reviews
Filterssort
All Filters
Reset
Shape
Carat
Color
MLKJIHGFED
Clarity
I1SI2SI1VS2VS1VVS2VVS1IFFL
Cut
FairGoodVery GoodExcellentIdeal
Price
Polish
PoorFairGoodVery GoodExcellent
Symmetry
PoorFairGoodVery GoodExcellent
Lab
Ratio
Showing 0 Results
Details
  • SKU:HJ_18098173
  • Shape:Square Radiant
  • Carat:0.5
  • Color:H
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:65
  • Depth:67.1
  • Length:4.44
  • Width:4.35
  • Ratio:1.02
  • Certificate:2537599763
  • Lab:GIA
Diamond
0.5 Carat H Square Radiant Diamond
£414
wishlist-icon
comparison-icon
Details
  • SKU:HJ_18544721
  • Shape:Square Radiant
  • Carat:0.31
  • Color:D
  • Clarity:VS1
  • Cut:
  • Polish:Very Good
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:67
  • Depth:66.6
  • Length:3.73
  • Width:3.71
  • Ratio:1
  • Certificate:LG791656461
  • Lab:IGI
Diamond
0.31 Carat D Square Radiant Diamond
£646
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17425948
  • Shape:Square Radiant
  • Carat:0.33
  • Color:D
  • Clarity:VS1
  • Cut:
  • Polish:Very Good
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:70
  • Depth:70.1
  • Length:3.85
  • Width:3.78
  • Ratio:1.02
  • Certificate:LG789630949
  • Lab:IGI
Diamond
0.33 Carat D Square Radiant Diamond
£674
wishlist-icon
comparison-icon
Details
  • SKU:HJ_18353641
  • Shape:Square Radiant
  • Carat:0.51
  • Color:G
  • Clarity:VVS2
  • Cut:
  • Polish:Very Good
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:67
  • Depth:66.7
  • Length:4.43
  • Width:4.36
  • Ratio:1.02
  • Certificate:LG791608639
  • Lab:IGI
Diamond
0.51 Carat G Square Radiant Diamond
£797
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17565611
  • Shape:Square Radiant
  • Carat:0.85
  • Color:D
  • Clarity:VVS2
  • Cut:
  • Polish:Very Good
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:70
  • Depth:65
  • Length:5.43
  • Width:5.28
  • Ratio:1.03
  • Certificate:LG641484437
  • Lab:IGI
Diamond
0.85 Carat D Square Radiant Diamond
£851
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17875191
  • Shape:Square Radiant
  • Carat:0.52
  • Color:D
  • Clarity:VS1
  • Cut:
  • Polish:Very Good
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:74
  • Depth:65.4
  • Length:4.57
  • Width:4.39
  • Ratio:1.04
  • Certificate:LG764609175
  • Lab:IGI
Diamond
0.52 Carat D Square Radiant Diamond
£864
wishlist-icon
comparison-icon
Details
  • SKU:HJ_18536227
  • Shape:Square Radiant
  • Carat:0.54
  • Color:F
  • Clarity:VVS2
  • Cut:
  • Polish:Very Good
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:71
  • Depth:65.7
  • Length:4.49
  • Width:4.46
  • Ratio:1.01
  • Certificate:LG792647945
  • Lab:IGI
Diamond
0.54 Carat F Square Radiant Diamond
£895
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17816823
  • Shape:Square Radiant
  • Carat:0.7
  • Color:D
  • Clarity:VVS2
  • Cut:
  • Polish:Very Good
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:68
  • Depth:67.8
  • Length:4.95
  • Width:4.82
  • Ratio:1.03
  • Certificate:LG732572971
  • Lab:IGI
Diamond
0.7 Carat D Square Radiant Diamond
£908
wishlist-icon
comparison-icon
Details
  • SKU:HJ_18544796
  • Shape:Square Radiant
  • Carat:0.51
  • Color:D
  • Clarity:VVS2
  • Cut:
  • Polish:Very Good
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:65
  • Depth:62.6
  • Length:4.48
  • Width:4.47
  • Ratio:1
  • Certificate:LG792647926
  • Lab:IGI
Diamond
0.51 Carat D Square Radiant Diamond
£934
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17752536
  • Shape:Square Radiant
  • Carat:0.93
  • Color:D
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:63
  • Depth:64.5
  • Length:5.71
  • Width:5.49
  • Ratio:1.04
  • Certificate:LG704583842
  • Lab:IGI
Diamond
0.93 Carat D Square Radiant Diamond
£973
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17419432
  • Shape:Square Radiant
  • Carat:0.93
  • Color:D
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:61
  • Depth:65.6
  • Length:5.46
  • Width:5.18
  • Ratio:1.05
  • Certificate:LG688517260
  • Lab:IGI
Diamond
0.93 Carat D Square Radiant Diamond
£1,052
wishlist-icon
comparison-icon
Details
  • SKU:HJ_18552364
  • Shape:Square Radiant
  • Carat:0.3
  • Color:G
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:66
  • Depth:67.2
  • Length:3.68
  • Width:3.68
  • Ratio:1
  • Certificate:2527006881
  • Lab:GIA
Diamond
0.3 Carat G Square Radiant Diamond
£1,088
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17375144
  • Shape:Square Radiant
  • Carat:0.94
  • Color:E
  • Clarity:VS1
  • Cut:
  • Polish:Very Good
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:70
  • Depth:64.2
  • Length:5.35
  • Width:5.33
  • Ratio:1
  • Certificate:LG555268048
  • Lab:IGI
Diamond
0.94 Carat E Square Radiant Diamond
£1,091
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17837419
  • Shape:Square Radiant
  • Carat:0.97
  • Color:D
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:67
  • Depth:64.7
  • Length:5.57
  • Width:5.53
  • Ratio:1.01
  • Certificate:LG628499253
  • Lab:IGI
Diamond
0.97 Carat D Square Radiant Diamond
£1,096
wishlist-icon
comparison-icon
Details
  • SKU:HJ_18544720
  • Shape:Square Radiant
  • Carat:0.68
  • Color:D
  • Clarity:VS1
  • Cut:
  • Polish:Very Good
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:64
  • Depth:60.2
  • Length:4.93
  • Width:4.93
  • Ratio:1
  • Certificate:LG791656462
  • Lab:IGI
Diamond
0.68 Carat D Square Radiant Diamond
£1,105
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17568957
  • Shape:Square Radiant
  • Carat:0.96
  • Color:D
  • Clarity:VVS1
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:60
  • Depth:60.3
  • Length:5.76
  • Width:5.62
  • Ratio:1.02
  • Certificate:LG727573451
  • Lab:IGI
Diamond
0.96 Carat D Square Radiant Diamond
£1,132
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17674063
  • Shape:Square Radiant
  • Carat:0.5
  • Color:E
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:66
  • Depth:65.8
  • Length:4.52
  • Width:4.48
  • Ratio:1.01
  • Certificate:LG771606776
  • Lab:IGI
Diamond
0.5 Carat E Square Radiant Diamond
£1,133
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17375143
  • Shape:Square Radiant
  • Carat:0.95
  • Color:E
  • Clarity:VVS1
  • Cut:
  • Polish:Very Good
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:65.5
  • Depth:71.1
  • Length:5.23
  • Width:5.19
  • Ratio:1.01
  • Certificate:LG555268049
  • Lab:IGI
Diamond
0.95 Carat E Square Radiant Diamond
£1,171
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17289118
  • Shape:Square Radiant
  • Carat:1.43
  • Color:E
  • Clarity:VS1
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:67
  • Depth:61.4
  • Length:6.47
  • Width:6.37
  • Ratio:1.02
  • Certificate:LG717537594
  • Lab:IGI
Diamond
1.43 Carat E Square Radiant Diamond
£1,202
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17631592
  • Shape:Square Radiant
  • Carat:0.96
  • Color:E
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:61
  • Depth:68.9
  • Length:5.52
  • Width:5.31
  • Ratio:1.04
  • Certificate:LG778694369
  • Lab:IGI
Diamond
0.96 Carat E Square Radiant Diamond
£1,223
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17599795
  • Shape:Square Radiant
  • Carat:1.15
  • Color:E
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:67
  • Depth:68.7
  • Length:5.91
  • Width:5.87
  • Ratio:1.01
  • Certificate:LG662432893
  • Lab:IGI
Diamond
1.15 Carat E Square Radiant Diamond
£1,242
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17669626
  • Shape:Square Radiant
  • Carat:1.34
  • Color:D
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:60
  • Depth:63
  • Length:6.44
  • Width:6.3
  • Ratio:1.02
  • Certificate:LG720592161
  • Lab:IGI
Diamond
1.34 Carat D Square Radiant Diamond
£1,260
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17672611
  • Shape:Square Radiant
  • Carat:1.11
  • Color:D
  • Clarity:VVS1
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:68
  • Depth:61.4
  • Length:5.97
  • Width:5.9
  • Ratio:1.01
  • Certificate:LG705535265
  • Lab:IGI
Diamond
1.11 Carat D Square Radiant Diamond
£1,278
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17548397
  • Shape:Square Radiant
  • Carat:1.19
  • Color:E
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:66
  • Depth:66
  • Length:5.96
  • Width:5.83
  • Ratio:1.02
  • Certificate:LG670431695
  • Lab:IGI
Diamond
1.19 Carat E Square Radiant Diamond
£1,278
wishlist-icon
comparison-icon
Details
  • SKU:HJ_18552704
  • Shape:Square Radiant
  • Carat:0.31
  • Color:D
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:FNT
  • Table:63
  • Depth:65.9
  • Length:3.69
  • Width:3.71
  • Ratio:1
  • Certificate:2526216565
  • Lab:GIA
Diamond
0.31 Carat D Square Radiant Diamond
£1,282
wishlist-icon
comparison-icon
Details
  • SKU:HJ_18552460
  • Shape:Square Radiant
  • Carat:0.31
  • Color:D
  • Clarity:VS1
  • Cut:
  • Polish:Very Good
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:63
  • Depth:68.2
  • Length:3.63
  • Width:3.65
  • Ratio:1
  • Certificate:7516972819
  • Lab:GIA
Diamond
0.31 Carat D Square Radiant Diamond
£1,289
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17668738
  • Shape:Square Radiant
  • Carat:1.4
  • Color:E
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:63
  • Depth:63.6
  • Length:6.42
  • Width:6.38
  • Ratio:1.01
  • Certificate:LG694508620
  • Lab:IGI
Diamond
1.4 Carat E Square Radiant Diamond
£1,292
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17834587
  • Shape:Square Radiant
  • Carat:1.44
  • Color:E
  • Clarity:VS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:60
  • Depth:64.4
  • Length:6.53
  • Width:6.4
  • Ratio:1.02
  • Certificate:LG700556201
  • Lab:IGI
Diamond
1.44 Carat E Square Radiant Diamond
£1,294
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17667356
  • Shape:Square Radiant
  • Carat:1.31
  • Color:E
  • Clarity:VVS1
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:69
  • Depth:60.5
  • Length:6.32
  • Width:6.31
  • Ratio:1
  • Certificate:LG715550613
  • Lab:IGI
Diamond
1.31 Carat E Square Radiant Diamond
£1,295
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17669589
  • Shape:Square Radiant
  • Carat:1.34
  • Color:F
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:66
  • Depth:61.4
  • Length:6.35
  • Width:6.25
  • Ratio:1.02
  • Certificate:LG713511136
  • Lab:IGI
Diamond
1.34 Carat F Square Radiant Diamond
£1,302
wishlist-icon
comparison-icon
Details
  • SKU:HJ_18549811
  • Shape:Square Radiant
  • Carat:0.3
  • Color:E
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:65
  • Depth:66.8
  • Length:3.63
  • Width:3.71
  • Ratio:0.98
  • Certificate:1548827813
  • Lab:GIA
Diamond
0.3 Carat E Square Radiant Diamond
£1,307
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17418840
  • Shape:Square Radiant
  • Carat:1
  • Color:D
  • Clarity:VS1
  • Cut:
  • Polish:Very Good
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:63
  • Depth:68
  • Length:5.43
  • Width:5.22
  • Ratio:1.04
  • Certificate:LG685535294
  • Lab:IGI
Diamond
1 Carat D Square Radiant Diamond
£1,308
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17438836
  • Shape:Square Radiant
  • Carat:1.04
  • Color:D
  • Clarity:VS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:61
  • Depth:62.2
  • Length:5.72
  • Width:5.5
  • Ratio:1.04
  • Certificate:LG653437287
  • Lab:IGI
Diamond
1.04 Carat D Square Radiant Diamond
£1,308
wishlist-icon
comparison-icon
Details
  • SKU:HJ_15728292
  • Shape:Square Radiant
  • Carat:1
  • Color:D
  • Clarity:VS1
  • Cut:
  • Polish:Very Good
  • Symmetry:Very Good
  • Fluorescense:NON
  • Table:75
  • Depth:64.6
  • Length:5.71
  • Width:5.48
  • Ratio:1.04
  • Certificate:LG776608765
  • Lab:IGI
Diamond
1 Carat D Square Radiant Diamond
£1,319
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17372956
  • Shape:Square Radiant
  • Carat:1.01
  • Color:D
  • Clarity:VS1
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:63
  • Depth:70.8
  • Length:5.51
  • Width:5.2
  • Ratio:1.06
  • Certificate:LG644435525
  • Lab:IGI
Diamond
1.01 Carat D Square Radiant Diamond
£1,320
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17289101
  • Shape:Square Radiant
  • Carat:1.42
  • Color:D
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:63
  • Depth:61.2
  • Length:6.41
  • Width:6.36
  • Ratio:1.01
  • Certificate:LG716503721
  • Lab:IGI
Diamond
1.42 Carat D Square Radiant Diamond
£1,324
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17853275
  • Shape:Square Radiant
  • Carat:0.9
  • Color:F
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:70
  • Depth:71.3
  • Length:5.39
  • Width:5.33
  • Ratio:1.01
  • Certificate:LG648477864
  • Lab:IGI
Diamond
0.9 Carat F Square Radiant Diamond
£1,324
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17671922
  • Shape:Square Radiant
  • Carat:1.44
  • Color:E
  • Clarity:VVS2
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:59
  • Depth:65.5
  • Length:6.43
  • Width:6.43
  • Ratio:1
  • Certificate:LG700584400
  • Lab:IGI
Diamond
1.44 Carat E Square Radiant Diamond
£1,324
wishlist-icon
comparison-icon
Details
  • SKU:HJ_17860021
  • Shape:Square Radiant
  • Carat:1.31
  • Color:E
  • Clarity:VS1
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:65
  • Depth:66.2
  • Length:6.32
  • Width:6.09
  • Ratio:1.04
  • Certificate:LG687531522
  • Lab:IGI
Diamond
1.31 Carat E Square Radiant Diamond
£1,325
wishlist-icon
comparison-icon
Details
  • SKU:HJ_18545084
  • Shape:Square Radiant
  • Carat:0.34
  • Color:G
  • Clarity:VVS1
  • Cut:
  • Polish:Excellent
  • Symmetry:Excellent
  • Fluorescense:NON
  • Table:69
  • Depth:65.7
  • Length:3.86
  • Width:3.87
  • Ratio:1
  • Certificate:2544829455
  • Lab:GIA
Diamond
0.34 Carat G Square Radiant Diamond
£1,327
wishlist-icon
comparison-icon

Loose Diamonds Collection

From classic round cuts to distinctive fancy shapes, every stone is evaluated for cut, colour, clarity, and carat balance. You can purchase a loose diamond on its own or continue to create a ring once you find the right match. Viewing all diamonds together helps you understand value differences and select the option that suits both style and budget.

Explore Related Pages

Frequently
Asked Questions

Trusted answers for your precious diamond jewellery

A loose diamond is an unset stone that can be purchased individually or later mounted into jewellery.

Yes, you can choose a setting after selecting your diamond to complete the ring.

Yes, diamonds include grading details covering cut, colour, clarity, and carat.

Comparing diamonds first helps you understand size, sparkle, and value differences before committing to a design.

Yes, loose diamonds can be purchased independently without mounting into jewellery.

They often provide clearer value transparency since you select the stone and setting separately.

Availability depends on stock status, but the diamond can be held during the design process.

Yes, pricing varies based on cut style, demand, and how the rough diamond is utilised.