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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 $3,699 AUD
$2,598 USD
As of November 2, 2026
Save $1,793 AUD (33%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,492 AUD 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 $3,699 to $5,492, a $1,793 spread on the same certified stone. 77 Diamonds lists it at $5,492. 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: $5,492 AUD|Low: $3,363 AUD|High: $5,512 AUD|Avg: $4,647 AUD|+2.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 2$3,699 AUD
Retailer 3$4,556 AUD
Retailer 4$4,798 AUD
Retailer 5$4,798 AUD
77 Diamonds$5,492 AUD

36 data points across 5 retailers

7 retailers$3,699 AUD to $5,492 AUD

B+
Cheapest Retailer
-
$3,699 AUD
$2,598 USD
Final sale: no returns
B
Retailer 2
-
$3,733 AUD
$2,622 USD
View
B
Retailer 3
-
$4,556 AUD
$3,200 USD
View
B
Retailer 4
-
$4,798 AUD
$3,370 USD
View
B
Retailer 5
-
$4,798 AUD
$3,370 USD
View
B
Retailer 6
-
$4,968 AUD
$3,490 USD
View
Most Expensive
B
77 Diamonds
CUSMBYMSYME5M · Nov 2
$5,492 AUD
£3,037 GBP
View
6 more retailers have this diamond
Prices start from $3,699 AUDSave up to $1,793 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.

B+
0.81ct Cushion
$3,699 AUD