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Cushion|Natural|GIA

0.81ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2136011783

Certificate GIA 2136011783

Diamond specifications and retailer prices

From £1,939 GBP
$2,598 USD
As of November 2, 2026
Save £940 GBP (33%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,879 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

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 2136011783. Listed at 7 retailers as of November 2, 2026, with prices from £1,939 to £2,879, a £940 spread on the same certified stone. 77 Diamonds lists it at £2,879. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2136011783
Dimensions5.45 × 5.14 × 3.29 mm
L/W Ratio1.06
Culet sizeNone
Top View
5.45 mm5.14 mm0.81 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2136011783
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £2,879 GBP|Low: £1,763 GBP|High: £2,890 GBP|Avg: £2,436 GBP|+2.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 2£1,939 GBP
Retailer 3£2,388 GBP
Retailer 4£2,515 GBP
Retailer 5£2,515 GBP
77 Diamonds£2,879 GBP

36 data points across 5 retailers

7 retailers£1,939 GBP to £2,879 GBP

B+
Cheapest Retailer
-
£1,939 GBP
$2,598 USD
Final sale: no returns
B
Retailer 2
-
£1,957 GBP
$2,622 USD
View
B
Retailer 3
-
£2,388 GBP
$3,200 USD
View
B
Retailer 4
-
£2,515 GBP
$3,370 USD
View
B
Retailer 5
-
£2,515 GBP
$3,370 USD
View
B
Retailer 6
-
£2,605 GBP
$3,490 USD
View
Most Expensive
B
77 Diamonds
CUSMBYMSYME5M · Nov 2
£2,879 GBP
View
6 more retailers have this diamond
Prices start from £1,939 GBPSave up to £940 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.

B+
0.81ct Cushion
£1,939 GBP