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Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2566156667

Certificate GIA 2566156667

Diamond specifications and retailer prices

From $2,442 USD
As of November 5, 2026
Save $1,840 USD (43%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,282 USD at Wholesale Diamonds Direct · As of November 3, 2026
View at Wholesale Diamonds Direct

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-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 2566156667. Listed at 10 retailers as of November 3, 2026, with prices from $2,442 to $4,282, a $1,840 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,282. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle37.99°
Pavilion angle37.89°
OriginNatural
Grading LabGIA
CertificateGIA 2566156667
Dimensions10.60 × 5.54 × 3.31 mm
L/W Ratio1.91
Culet sizeNone
Top View
10.60 mm5.54 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2566156667
Side View
Table 61.0%Crown 37.99°Girdle: VTN-THKPavilion 37.89°Culet: NoneDepth 59.8%

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 5
Current: $4,040 USD|Low: $2,428 USD|High: $4,541 USD|Avg: $3,165 USD|+19.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 6, 2026
Retailer 2$2,442 USD
Retailer 5$2,593 USD
Retailer 9$2,799 USD
Retailer 4$2,848 USD
Retailer 8$2,872 USD
Retailer 6$3,120 USD
Retailer 7$3,200 USD
Retailer 3$3,308 USD
Retailer 1$4,040 USD
Wholesale Diamonds Direct$4,282 USD

34 data points across 10 retailers

10 retailers$2,442 USD to $4,282 USD

A
Cheapest Retailer
-
$2,442 USD
A
Retailer 2
-
$2,593 USD
View
B+
Retailer 3
-
$2,799 USD
View
A
Retailer 4
-
$2,848 USD
View
A
Retailer 5
-
$2,872 USD
View
B+
Retailer 6
-
$3,120 USD
View
B+
Retailer 7
-
$3,200 USD
View
B+
Retailer 8
-
$3,308 USD
View
B
Retailer 9
-
$4,040 USD
View
Most Expensive
B
Wholesale Diamonds Direct
348918947 · Nov 3
$4,282 USD
View
9 more retailers have this diamond
Prices start from $2,442 USDSave up to $1,840 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 Marquise
$2,442 USD