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Cushion|Natural|GIA

1.20ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1553750815

Certificate GIA 1553750815

Diamond specifications and retailer prices

From $1,881 USD
As of November 6, 2026
Save $2,498 USD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,379 USD at MOH London · As of November 4, 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 I 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 1553750815. Listed at 17 retailers as of November 4, 2026, with prices from $1,881 to $4,379, a $2,498 spread on the same certified stone. MOH London lists it at $4,379. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553750815
Dimensions7.02 × 5.24 × 3.60 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
7.02 mm5.24 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1553750815
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.7%

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 6
Current: $4,379 USD|Low: $1,881 USD|High: $4,437 USD|Avg: $2,755 USD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$1,881 USD
Retailer 2$1,967 USD
Retailer 6$2,196 USD
Retailer 3$2,431 USD
Retailer 9$2,506 USD
Retailer 7$2,651 USD
Retailer 5$3,058 USD
Retailer 4$3,111 USD
MOH London$4,379 USD

26 data points across 9 retailers

17 retailers$1,881 USD to $4,379 USD

A
Cheapest Retailer
-
$1,881 USD
A
Retailer 2
-
$1,967 USD
View
A
Retailer 3
-
$2,196 USD
View
B+
Retailer 4
-
$2,312 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,332 USD
View
B+
Retailer 6
-
$2,335 USD
View
B+
Retailer 7
-
$2,431 USD
View
Retailer 8
-
$2,506 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$2,619 USD
View
B+
Retailer 10
-
$2,646 USD
View
B+
Retailer 11
-
$2,651 USD
View
B+
Retailer 12
-
$2,670 USD
View
B+
Retailer 13
-
$2,720 USD
View
Retailer 14
-
$2,807 USD
View
Price last confirmed 31 days ago
B+
Retailer 15
-
$3,058 USD
View
B
Retailer 16
-
$3,111 USD
View
Most Expensive
B
MOH London
98F9CC2F9 · Nov 4
$4,379 USD
£3,448 GBP
View
16 more retailers have this diamond
Prices start from $1,881 USDSave up to $2,498 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
1.20ct Cushion
$1,881 USD