Cushion|Natural|GIA

1.80ct G SI2 Cushion Natural Diamond

EX • G/SI2 • GIA 5231935650

Certificate GIA 5231935650

Diamond specifications and retailer prices

From $4,147 USD
HK$32,400 HKD
As of November 1, 2026
Save $4,848 USD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $8,995 USD 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 $4,147 to $8,995, a $4,848 spread on the same certified stone. MOH London lists it at $8,995. 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
Color
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

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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: $8,995 USD|Low: $4,109 USD|High: $9,126 USD|Avg: $5,899 USD|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4$4,147 USD
Retailer 3$4,968 USD
Retailer 7$5,275 USD
Retailer 2$5,397 USD
Retailer 8$5,568 USD
Retailer 6$5,956 USD
Retailer 5$6,438 USD
MOH London$8,995 USD

43 data points across 8 retailers

9 retailers$4,147 USD to $8,995 USD

A
Cheapest Retailer
-
$4,147 USD
HK$32,400 HKD
A
Retailer 2
-
$4,968 USD
View
A
Retailer 3
-
$5,275 USD
SGD 7,129 SGD
View
A
Retailer 4
-
$5,397 USD
£4,250 GBP
View
A
Retailer 5
-
$5,568 USD
View
Final sale: no returns
A
Retailer 6
-
$5,953 USD
A$9,158 AUD
View
A
Retailer 7
-
$5,956 USD
View
A
Retailer 8
-
$6,438 USD
€6,131 EUR
View
Most Expensive
B+
MOH London
50A3EE518 · Nov 1
$8,995 USD
£7,083 GBP
View
8 more retailers have this diamond
Prices start from $4,147 USDSave up to $4,848 USD

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
$4,147 USD