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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 $3,321 SGD
$2,598 USD
As of October 31, 2026
Save $1,610 SGD (33%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,931 SGD at 77 Diamonds · As of November 1, 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 October 31, 2026, with prices from $3,321 to $4,931, a $1,610 spread on the same certified stone. 77 Diamonds lists it at $4,931. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $4,931 SGD|Low: $3,020 SGD|High: $4,950 SGD|Avg: $4,173 SGD|+2.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 2$3,321 SGD
Retailer 3$4,091 SGD
Retailer 4$4,308 SGD
Retailer 5$4,308 SGD
77 Diamonds$4,931 SGD

35 data points across 5 retailers

7 retailers$3,321 SGD to $4,931 SGD

B+
Cheapest Retailer
-
$3,321 SGD
$2,598 USD
Final sale: no returns
B
Retailer 2
-
$3,352 SGD
$2,622 USD
View
B
Retailer 3
-
$4,091 SGD
$3,200 USD
View
B
Retailer 4
-
$4,308 SGD
$3,370 USD
View
B
Retailer 5
-
$4,308 SGD
$3,370 USD
View
B
Retailer 6
-
$4,462 SGD
$3,490 USD
View
Most Expensive
B
77 Diamonds
CUSMBYMSYME5M · Nov 1
$4,931 SGD
£3,037 GBP
View
6 more retailers have this diamond
Prices start from $3,321 SGDSave up to $1,610 SGD

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
$3,321 SGD