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Cushion|Natural|GIA

0.81ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 5553804788

Certificate GIA 5553804788

Diamond specifications and retailer prices

From £758 GBP
$1,015 USD
As of November 1, 2026
Save £163 GBP (18%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £921 GBP at GemTrove · As of November 1, 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 5553804788. Listed at 8 retailers as of November 1, 2026, with prices from £758 to £921, a £163 spread on the same certified stone. GemTrove lists it at £921. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5553804788
Dimensions5.28 × 5.19 × 3.49 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
5.28 mm5.19 mm0.81 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5553804788
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.2%

Caratlytics Score

How it works →
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: Nov 1
Current: £921 GBP|Low: £668 GBP|High: £933 GBP|Avg: £847 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5£758 GBP
Retailer 6£803 GBP
Retailer 7£805 GBP
Retailer 2£817 GBP
Retailer 3£858 GBP
Retailer 8£858 GBP
Retailer 4£888 GBP
GemTrove£921 GBP

35 data points across 8 retailers

8 retailers£758 GBP to £921 GBP

A
Cheapest Retailer
-
£758 GBP
$1,015 USD
A
Retailer 2
-
£803 GBP
$1,076 USD
View
A
Retailer 3
-
£805 GBP
SGD 1,457 SGD
View
A
Retailer 4
-
£817 GBP
View
A
Retailer 5
-
£858 GBP
$1,150 USD
View
A
Retailer 6
-
£858 GBP
$1,150 USD
View
A
Retailer 7
-
£888 GBP
$1,190 USD
View
Most Expensive
A
GemTrove
GT-N-00961886-98 · Nov 1
£921 GBP
A$1,898 AUD
View
7 more retailers have this diamond
Prices start from £758 GBPSave up to £163 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
£758 GBP