Cushion|Natural|GIA

0.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6502986341

Certificate GIA 6502986341

Diamond specifications and retailer prices

From £306 GBP
As of November 6, 2026
Save £486 GBP (61%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £792 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6502986341. Listed at 10 retailers as of November 6, 2026, with prices from £306 to £792, a £486 spread on the same certified stone. Do Amore Diamonds lists it at £792. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6502986341
Dimensions4.52 × 4.42 × 2.97 mm
L/W Ratio1.02
Top View
4.52 mm4.42 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6502986341
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £792 GBP|Low: £253 GBP|High: £874 GBP|Avg: £406 GBP|-9.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10£282 GBP
Retailer 7£292 GBP
Retailer 6£306 GBP
Retailer 3£312 GBP
Retailer 9£350 GBP
Retailer 8£390 GBP
Retailer 2£400 GBP
Retailer 4£418 GBP
Retailer 11£418 GBP
Retailer 5£433 GBP
Do Amore Diamonds£792 GBP

41 data points across 11 retailers

10 retailers£306 GBP to £792 GBP

Retailer 1
-
£282 GBP
Price last confirmed 12 days ago
A
Retailer 2
-
£306 GBP
View
A
Retailer 3
-
£312 GBP
View
Retailer 4
-
£350 GBP
View
Price last confirmed 10 days ago
Retailer 5
-
£390 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
-
£400 GBP
View
Retailer 7
-
£418 GBP
View
Price last confirmed 10 days ago
Retailer 8
-
£418 GBP
View
Price last confirmed 10 days ago
Retailer 9
-
£433 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
Do Amore Diamonds
12-100760658646 · Nov 6
£792 GBP
$1,060 USD
View
9 more retailers have this diamond
Prices start from £306 GBPSave up to £486 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
£306 GBP