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Cushion|Natural|GIA

0.51ct D SI2 Cushion Natural Diamond

EX • D/SI2 • GIA 6532537610

Certificate GIA 6532537610

Diamond specifications and retailer prices

From £308 GBP
₹39,269 INR
As of October 30, 2026
Save £652 GBP (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £960 GBP at MOH London · As of October 25, 2026
View at MOH London

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532537610. Listed at 8 retailers as of October 25, 2026, with prices from £308 to £960, a £652 spread on the same certified stone. MOH London lists it at £960. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6532537610
Dimensions4.59 × 4.36 × 3.01 mm
L/W Ratio1.05
Top View
4.59 mm4.36 mm0.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532537610
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.2%

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 30
Current: £960 GBP|Low: £307 GBP|High: £992 GBP|Avg: £564 GBP|-2.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 4£308 GBP
Retailer 7£433 GBP
Retailer 6£513 GBP
Retailer 3£520 GBP
Retailer 5£520 GBP
Retailer 2£618 GBP
MOH London£960 GBP

45 data points across 7 retailers

8 retailers£308 GBP to £960 GBP

A
Cheapest Retailer
-
£308 GBP
₹39,269 INR
A
Retailer 2
-
£353 GBP
HK$3,700 HKD
View
A
Retailer 3
-
£433 GBP
SGD 784 SGD
View
B+
Retailer 4
-
£513 GBP
$688 USD
View
B+
Retailer 5
-
£520 GBP
View
B+
Retailer 6
-
£520 GBP
View
B+
Retailer 7
-
£618 GBP
€788 EUR
View
Most Expensive
B
MOH London
676A0D666 · Oct 25
£960 GBP
View
7 more retailers have this diamond
Prices start from £308 GBPSave up to £652 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
£308 GBP