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Cushion|Natural|GIA

0.81ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6435053814

Certificate GIA 6435053814

Diamond specifications and retailer prices

From £1,019 GBP
$1,365 USD
As of November 1, 2026
Save £979 GBP (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,998 GBP at MOH London · As of October 29, 2026
View at MOH London

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 6435053814. Listed at 12 retailers as of October 29, 2026, with prices from £1,019 to £1,998, a £979 spread on the same certified stone. MOH London lists it at £1,998. 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
Crown angle33.6°
Pavilion angle33.3°
OriginNatural
Grading LabGIA
CertificateGIA 6435053814
Dimensions5.79 × 5.04 × 3.36 mm
L/W Ratio1.15
Top View
5.79 mm5.04 mm0.81 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6435053814
Side View
Table 59.0%Crown 33.6°Girdle: MED-VTKPavilion 33.3°Culet: NoneDepth 66.7%

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: £1,998 GBP|Low: £1,019 GBP|High: £2,011 GBP|Avg: £1,367 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10£1,019 GBP
Retailer 5£1,075 GBP
Retailer 9£1,149 GBP
Retailer 7£1,162 GBP
Retailer 6£1,224 GBP
Retailer 2£1,301 GBP
Retailer 8£1,513 GBP
Retailer 3£1,587 GBP
Retailer 4£1,731 GBP
MOH London£1,998 GBP

42 data points across 10 retailers

12 retailers£1,019 GBP to £1,998 GBP

A
Cheapest Retailer
-
£1,019 GBP
$1,365 USD
Retailer 2
-
£1,075 GBP
$1,440 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
£1,076 GBP
$1,442 USD
View
A
Retailer 4
-
£1,149 GBP
$1,540 USD
View
B+
Retailer 5
-
£1,162 GBP
$1,557 USD
View
B+
Retailer 6
-
£1,224 GBP
$1,640 USD
View
B+
Retailer 7
-
£1,263 GBP
$1,693 USD
View
B+
Retailer 8
-
£1,301 GBP
View
Retailer 9
-
£1,513 GBP
A$3,119 AUD
View
Price last confirmed 31 days ago
B+
Retailer 10
-
£1,587 GBP
€2,025 EUR
View
B+
Retailer 11
-
£1,731 GBP
ZAR 37,460 ZAR
View
Most Expensive
B
MOH London
F16228E30 · Oct 29
£1,998 GBP
View
11 more retailers have this diamond
Prices start from £1,019 GBPSave up to £979 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
£1,019 GBP