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Cushion|Natural|GIA

0.51ct D SI2 Cushion Natural Diamond

GD • D/SI2 • GIA 2537087525

Certificate GIA 2537087525

Diamond specifications and retailer prices

From £288 GBP
$386 USD
As of October 31, 2026
Save £110 GBP (28%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £398 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2537087525. Listed at 3 retailers as of October 31, 2026, with prices from £288 to £398, a £110 spread on the same certified stone. 77 Diamonds lists it at £398. 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

0.51
Carat
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2537087525
Dimensions4.70 × 4.38 × 2.92 mm
L/W Ratio1.07
Top View
4.70 mm4.38 mm0.51 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2537087525
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.7%

Caratlytics Score

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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: Oct 31
Current: £398 GBP|Low: £252 GBP|High: £419 GBP|Avg: £319 GBP|+17.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 4£256 GBP
Retailer 3£288 GBP
Retailer 2£345 GBP
77 Diamonds£398 GBP

34 data points across 4 retailers

3 retailers£288 GBP to £398 GBP

A
Cheapest Retailer
-
£288 GBP
$386 USD
Final sale: no returns
B+
Retailer 2
-
£345 GBP
SGD 625 SGD
View
Most Expensive
B+
77 Diamonds
CUSCPFZJRFCMH · Nov 1
£398 GBP
View
2 more retailers have this diamond
Prices start from £288 GBPSave up to £110 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
0.51ct Cushion
£288 GBP