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Cushion|Natural|GIA

1.51ct D SI2 Cushion Natural Diamond

VG • D/SI2 • GIA 6552334255

Certificate GIA 6552334255

Diamond specifications and retailer prices

From £2,398 GBP
HK$25,100 HKD
As of November 1, 2026
Save £1,364 GBP (36%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,393 GBP at MOH London · As of October 8, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552334255. Listed at 16 retailers as of October 31, 2026, with a 57% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.2°
Pavilion angle33.7°
OriginNatural
Grading LabGIA
CertificateGIA 6552334255
Dimensions6.58 × 6.27 × 4.28 mm
L/W Ratio1.05
Girdle conditionFaceted
Top View
6.58 mm6.27 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552334255
Side View
Table 63.0%Crown 39.2°Girdle: THN-VTKPavilion 33.7°Culet: NoneDepth 68.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £5,393 GBP|Low: £2,369 GBP|High: £11,211 GBP|Avg: £3,551 GBP|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 2£2,398 GBP
Retailer 6£2,491 GBP
Retailer 10£2,511 GBP
Retailer 15£2,592 GBP
Retailer 12£2,923 GBP
Retailer 5£2,949 GBP
Retailer 7£3,011 GBP
Retailer 4£3,055 GBP
Retailer 3£3,239 GBP
Retailer 13£3,239 GBP
Retailer 14£3,344 GBP
Retailer 8£3,363 GBP
Retailer 9£3,632 GBP
Retailer 11£3,762 GBP
MOH London£5,393 GBP

30 data points across 15 retailers

16 retailers£2,398 GBP to £3,762 GBP

A
Cheapest Retailer
-
£2,398 GBP
HK$25,100 HKD
A
Retailer 2
-
£2,511 GBP
$3,365 USD
View
A
Retailer 3
-
£2,592 GBP
$3,473 USD
View
A
Retailer 4
-
£2,628 GBP
A$5,417 AUD
View
A
Retailer 5
-
£2,923 GBP
$3,917 USD
View
B+
Retailer 6
-
£2,949 GBP
$3,952 USD
View
Final sale: no returns
Retailer 7
-
£3,011 GBP
SGD 5,452 SGD
View
Price last confirmed 23 days ago
A
Retailer 8
-
£3,055 GBP
$4,094 USD
View
A
Retailer 9
-
£3,239 GBP
$4,340 USD
View
A
Retailer 10
-
£3,239 GBP
$4,340 USD
View
A
Retailer 11
-
£3,332 GBP
A$6,868 AUD
View
A
Retailer 12
-
£3,344 GBP
$4,480 USD
View
A
Retailer 13
-
£3,363 GBP
€4,291 EUR
View
B+
Retailer 14
-
£3,632 GBP
View
B+
Retailer 15
-
£3,762 GBP
$5,041 USD
View
Most Expensive
MOH London
6F24A0D2E · Oct 8
£5,393 GBP
View
Price last confirmed 24 days ago
15 more retailers have this diamond
Prices start from £2,398 GBPSave up to £1,364 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Cushion
£2,398 GBP