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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 $1,943 AUD
$1,365 USD
As of November 1, 2026
Save $1,868 AUD (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,811 AUD 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 $1,943 to $3,811, a $1,868 spread on the same certified stone. MOH London lists it at $3,811. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,811 AUD|Low: $1,943 AUD|High: $3,837 AUD|Avg: $2,610 AUD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10$1,943 AUD
Retailer 5$2,050 AUD
Retailer 9$2,192 AUD
Retailer 7$2,217 AUD
Retailer 6$2,335 AUD
Retailer 2$2,483 AUD
Retailer 8$2,886 AUD
Retailer 3$3,027 AUD
Retailer 4$3,301 AUD
MOH London$3,811 AUD

42 data points across 10 retailers

12 retailers$1,943 AUD to $3,811 AUD

A
Cheapest Retailer
-
$1,943 AUD
$1,365 USD
Retailer 2
-
$2,050 AUD
$1,440 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
$2,053 AUD
$1,442 USD
View
A
Retailer 4
-
$2,192 AUD
$1,540 USD
View
B+
Retailer 5
-
$2,217 AUD
$1,557 USD
View
B+
Retailer 6
-
$2,335 AUD
$1,640 USD
View
B+
Retailer 7
-
$2,410 AUD
$1,693 USD
View
B+
Retailer 8
-
$2,483 AUD
£1,373 GBP
View
Retailer 9
-
$2,886 AUD
View
Price last confirmed 32 days ago
B+
Retailer 10
-
$3,027 AUD
€2,025 EUR
View
B+
Retailer 11
-
$3,301 AUD
ZAR 37,460 ZAR
View
Most Expensive
B
MOH London
F16228E30 · Oct 29
$3,811 AUD
£2,108 GBP
View
11 more retailers have this diamond
Prices start from $1,943 AUDSave up to $1,868 AUD

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
$1,943 AUD