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Cushion|Natural|GIA

0.81ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 3555739511

Certificate GIA 3555739511

Diamond specifications and retailer prices

From £716 GBP
$960 USD
As of November 1, 2026
Save £267 GBP (27%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £984 GBP at GemTrove · As of October 31, 2026
View at GemTrove

About this 0.81ct natural cushion diamond

This 0.81ct natural cushion sits in the just-under-one-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 3555739511. Listed at 5 retailers as of October 31, 2026, with prices from £716 to £984, a £267 spread on the same certified stone. GemTrove lists it at £984. 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

0.81
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555739511
Dimensions5.26 × 5.14 × 3.46 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
5.26 mm5.14 mm0.81 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555739511
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £984 GBP|Low: £716 GBP|High: £984 GBP|Avg: £822 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 3£716 GBP
Retailer 5£762 GBP
Retailer 2£768 GBP
Retailer 4£831 GBP
GemTrove£984 GBP

39 data points across 5 retailers

5 retailers£716 GBP to £984 GBP

A
Cheapest Retailer
-
£716 GBP
$960 USD
A
Retailer 2
-
£762 GBP
SGD 1,379 SGD
View
A
Retailer 3
-
£768 GBP
View
A
Retailer 4
-
£831 GBP
$1,113 USD
View
Most Expensive
A
GemTrove
GT-N-00961881-98 · Oct 31
£984 GBP
A$2,028 AUD
View
4 more retailers have this diamond
Prices start from £716 GBPSave up to £267 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
0.81ct Cushion
£716 GBP