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Cushion|Natural|GIA

0.80ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6535020878

Certificate GIA 6535020878

Diamond specifications and retailer prices

From $1,388 SGD
$1,086 USD
As of November 1, 2026
Save $913 SGD (40%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,854 SGD at MOH London · As of October 25, 2026
View at MOH London

About this 0.8ct natural cushion diamond

This 0.8ct natural cushion sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6535020878. Listed at 10 retailers as of October 31, 2026, with a 66% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.80
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle54.2°
OriginNatural
Grading LabGIA
CertificateGIA 6535020878
Dimensions5.93 × 5.14 × 3.44 mm
L/W Ratio1.15
Top View
5.93 mm5.14 mm0.80 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535020878
Side View
Table 69.0%Crown 32.3°Girdle: MED-THKPavilion 54.2°Culet: NoneDepth 67.0%

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: $2,854 SGD|Low: $1,074 SGD|High: $2,880 SGD|Avg: $1,743 SGD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$1,074 SGD
Retailer 11$1,388 SGD
Retailer 9$1,436 SGD
Retailer 2$1,491 SGD
Retailer 6$1,529 SGD
Retailer 8$1,556 SGD
Retailer 10$1,670 SGD
Retailer 4$1,961 SGD
Retailer 5$2,175 SGD
Retailer 7$2,301 SGD
MOH London$2,854 SGD

21 data points across 11 retailers

10 retailers$1,388 SGD to $2,301 SGD

A
Cheapest Retailer
-
$1,388 SGD
$1,086 USD
A
Retailer 2
-
$1,436 SGD
$1,123 USD
View
Final sale: no returns
A
Retailer 3
-
$1,491 SGD
$1,166 USD
View
A
Retailer 4
-
$1,529 SGD
$1,196 USD
View
Retailer 5
-
$1,556 SGD
$1,217 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,670 SGD
$1,306 USD
View
B+
Retailer 7
-
$1,961 SGD
£1,208 GBP
View
B+
Retailer 8
-
$2,175 SGD
€1,620 EUR
View
B+
Retailer 9
-
$2,301 SGD
ZAR 29,080 ZAR
View
Most Expensive
MOH London
3A452DFB8 · Oct 25
$2,854 SGD
£1,758 GBP
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from $1,388 SGDSave up to $913 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.

A
0.80ct Cushion
$1,388 SGD