Cushion|Natural|GIA

1.20ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 2231900018

Certificate GIA 2231900018

Diamond specifications and retailer prices

From $3,266 USD
As of November 6, 2026
Save $3,697 USD (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,963 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-carat band, graded F 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 2231900018. Listed at 19 retailers as of November 1, 2026, with prices from $3,266 to $6,963, a $3,697 spread on the same certified stone. MOH London lists it at $6,963. 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

1.20
Carat
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Pavilion angle37.38°
OriginNatural
Grading LabGIA
CertificateGIA 2231900018
Dimensions7.09 × 5.47 × 3.78 mm
L/W Ratio1.30
Key to symbols
Crystal, Feather, Needle
Top View
7.09 mm5.47 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231900018
Side View
Table 67.0%CrownGirdle: THK-ETKPavilion 37.38°Culet: NoneDepth 69.2%

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: Nov 6
Current: $6,963 USD|Low: $3,162 USD|High: $7,047 USD|Avg: $4,613 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
Retailer 13
November 7, 2026
Retailer 5$3,266 USD
Retailer 3$3,656 USD
Retailer 8$3,961 USD
Retailer 9$4,277 USD
Retailer 11$4,294 USD
Retailer 2$4,440 USD
Retailer 10$4,560 USD
Retailer 12$4,560 USD
Retailer 4$4,663 USD
Retailer 13$4,710 USD
Retailer 6$4,920 USD
Retailer 7$5,334 USD
MOH London$6,963 USD

46 data points across 13 retailers

19 retailers$3,266 USD to $6,963 USD

B+
Cheapest Retailer
-
$3,266 USD
B+
Retailer 2
-
$3,362 USD
View
B+
Retailer 3
-
$3,485 USD
View
B+
Retailer 4
-
$3,593 USD
View
B+
Retailer 5
-
$3,626 USD
View
B+
Retailer 6
-
$3,656 USD
View
Final sale: no returns
B+
Retailer 7
-
$3,780 USD
View
Retailer 8
-
$3,961 USD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$4,277 USD
View
B
Retailer 10
-
$4,294 USD
View
B
Retailer 11
-
$4,440 USD
View
B
Retailer 12
-
$4,560 USD
View
B
Retailer 13
-
$4,560 USD
View
Retailer 14
-
$4,663 USD
View
Price last confirmed 29 days ago
B
Retailer 15
-
$4,710 USD
View
B
Retailer 16
-
$4,920 USD
View
Retailer 17
-
$4,945 USD
View
Price last confirmed 15 days ago
B
Retailer 18
-
$5,334 USD
View
Most Expensive
B
MOH London
F854FC011 · Nov 1
$6,963 USD
£5,483 GBP
View
18 more retailers have this diamond
Prices start from $3,266 USDSave up to $3,697 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+
1.20ct Cushion
$3,266 USD