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Cushion|Natural|GIA

1.80ct G SI2 Cushion Natural Diamond

EX • G/SI2 • GIA 5231935650

Certificate GIA 5231935650

Diamond specifications and retailer prices

From $5,302 SGD
HK$32,400 HKD
As of November 1, 2026
Save $6,198 SGD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,500 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.8ct natural cushion diamond

This 1.8ct natural cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231935650. Listed at 9 retailers as of November 1, 2026, with prices from $5,302 to $11,500, a $6,198 spread on the same certified stone. MOH London lists it at $11,500. 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

1.80
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle36.84°
OriginNatural
Grading LabGIA
CertificateGIA 5231935650
Dimensions6.84 × 6.81 × 4.70 mm
L/W Ratio1.00
Top View
6.84 mm6.81 mm1.80 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231935650
Side View
Table 61.0%CrownGirdle: STK-VTKPavilion 36.84°Culet: NoneDepth 69.0%

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: $11,500 SGD|Low: $5,253 SGD|High: $11,667 SGD|Avg: $7,541 SGD|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4$5,302 SGD
Retailer 3$6,351 SGD
Retailer 7$6,744 SGD
Retailer 2$6,900 SGD
Retailer 8$7,118 SGD
Retailer 6$7,614 SGD
Retailer 5$8,230 SGD
MOH London$11,500 SGD

43 data points across 8 retailers

9 retailers$5,302 SGD to $11,500 SGD

A
Cheapest Retailer
-
$5,302 SGD
HK$32,400 HKD
A
Retailer 2
-
$6,351 SGD
$4,968 USD
View
A
Retailer 3
-
$6,744 SGD
View
A
Retailer 4
-
$6,900 SGD
£4,250 GBP
View
A
Retailer 5
-
$7,118 SGD
$5,568 USD
View
Final sale: no returns
A
Retailer 6
-
$7,610 SGD
A$9,158 AUD
View
A
Retailer 7
-
$7,614 SGD
$5,956 USD
View
A
Retailer 8
-
$8,230 SGD
€6,131 EUR
View
Most Expensive
B+
MOH London
50A3EE518 · Nov 1
$11,500 SGD
£7,083 GBP
View
8 more retailers have this diamond
Prices start from $5,302 SGDSave up to $6,198 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
1.80ct Cushion
$5,302 SGD