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Cushion|Natural|GIA

1.51ct M SI2 Cushion Natural Diamond

VG • M/SI2 • GIA 2556767120

Certificate GIA 2556767120

Diamond specifications and retailer prices

From £944 GBP
As of November 6, 2026
Save £735 GBP (44%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,680 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2556767120. Listed at 4 retailers as of November 6, 2026, with prices from £944 to £1,680, a £735 spread on the same certified stone. Yorxs lists it at £1,680. 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
M
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2556767120
Dimensions7.10 × 5.97 × 4.12 mm
L/W Ratio1.19
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
7.10 mm5.97 mm1.51 ctM / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2556767120
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.0%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £1,146 GBP|Low: £944 GBP|High: £1,770 GBP|Avg: £1,299 GBP|-3.3%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 6, 2026
Retailer 2£944 GBP
Retailer 1£1,146 GBP
Retailer 3£1,258 GBP
Yorxs£1,680 GBP

44 data points across 4 retailers

4 retailers£944 GBP to £1,680 GBP

A
Cheapest Retailer
-
£944 GBP
B+
Retailer 2
-
£1,146 GBP
View
Retailer 3
-
£1,258 GBP
View
Price last confirmed 9 days ago
Most Expensive
B+
Yorxs
4091572EB · Nov 6
£1,680 GBP
€2,141 EUR
View
3 more retailers have this diamond
Prices start from £944 GBPSave up to £735 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
£944 GBP