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Cushion|Natural|GIA

1.80ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 1232746050

Certificate GIA 1232746050

Diamond specifications and retailer prices

From $6,495 USD
As of November 1, 2026
Save $5,175 USD (44%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $11,670 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 I 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 1232746050. Listed at 16 retailers as of November 1, 2026, with prices from $6,495 to $11,670, a $5,175 spread on the same certified stone. MOH London lists it at $11,670. 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
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle36.08°
OriginNatural
Grading LabGIA
CertificateGIA 1232746050
Dimensions8.12 × 6.25 × 4.36 mm
L/W Ratio1.30
Key to symbols
Crystal, Natural
Top View
8.12 mm6.25 mm1.80 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1232746050
Side View
Table 64.0%CrownGirdle: STK-VTKPavilion 36.08°Culet: NoneDepth 69.7%

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 1
Current: $11,670 USD|Low: $6,083 USD|High: $11,810 USD|Avg: $8,266 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6$6,667 USD
Retailer 11$6,718 USD
Retailer 8$7,002 USD
Retailer 3$7,197 USD
Retailer 7$7,690 USD
Retailer 10$7,695 USD
Retailer 9$7,722 USD
Retailer 2$7,904 USD
Retailer 5$9,150 USD
Retailer 12$9,223 USD
Retailer 4$10,058 USD
MOH London$11,670 USD

34 data points across 12 retailers

16 retailers$6,495 USD to $11,670 USD

B+
Cheapest Retailer
-
$6,495 USD
B+
Retailer 2
-
$6,516 USD
A$10,025 AUD
View
B+
Retailer 3
-
$6,616 USD
View
B+
Retailer 4
-
$6,667 USD
View
B+
Retailer 5
-
$6,718 USD
View
B
Retailer 6
-
$7,002 USD
View
Final sale: no returns
B+
Retailer 7
-
$7,690 USD
View
B+
Retailer 8
-
$7,695 USD
A$11,838 AUD
View
B+
Retailer 9
-
$7,722 USD
View
B+
Retailer 10
-
$7,904 USD
£6,224 GBP
View
B
Retailer 11
-
$8,250 USD
View
B
Retailer 12
-
$8,250 USD
View
B
Retailer 13
-
$8,520 USD
View
B
Retailer 14
-
$9,150 USD
€8,714 EUR
View
Retailer 15
-
$9,223 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
6D8B4787A · Nov 1
$11,670 USD
£9,189 GBP
View
15 more retailers have this diamond
Prices start from $6,495 USDSave up to $5,175 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.

B+
1.80ct Cushion
$6,495 USD