Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2556199559

Certificate GIA 2556199559

Diamond specifications and retailer prices

From $2,840 USD
As of November 4, 2026
Save $2,235 USD (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,075 USD at Wholesale Diamonds Direct · As of November 6, 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 2556199559. Listed at 11 retailers as of November 4, 2026, with prices from $2,840 to $5,075, a $2,235 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,075. 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
SymmetryExcellent
FluorescenceNone
Crown angle39.64°
Pavilion angle39.18°
OriginNatural
Grading LabGIA
CertificateGIA 2556199559
Dimensions11.28 × 5.34 × 3.34 mm
L/W Ratio2.11
Top View
11.28 mm5.34 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556199559
Side View
Table 59.0%Crown 39.64°Girdle: MED-THKPavilion 39.18°Culet: NoneDepth 62.5%

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 4
Current: $3,022 USD|Low: $2,840 USD|High: $5,597 USD|Avg: $3,619 USD|-8.9%
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 5$2,840 USD
Retailer 4$2,909 USD
Retailer 1$3,022 USD
Retailer 6$3,062 USD
Retailer 3$3,315 USD
Retailer 9$3,421 USD
Retailer 7$3,647 USD
Retailer 8$3,727 USD
Retailer 2$3,778 USD
Wholesale Diamonds Direct$5,075 USD

40 data points across 10 retailers

11 retailers$2,840 USD to $5,075 USD

A
Cheapest Retailer
-
$2,840 USD
A
Retailer 2
-
$2,909 USD
View
A
Retailer 3
-
$3,022 USD
View
A
Retailer 4
-
$3,062 USD
View
B+
Retailer 5
-
$3,315 USD
View
B+
Retailer 6
-
$3,421 USD
View
B+
Retailer 7
-
$3,647 USD
View
B+
Retailer 8
-
$3,727 USD
View
B+
Retailer 9
-
$3,778 USD
View
B
Retailer 10
-
$4,110 USD
View
Most Expensive
B
Wholesale Diamonds Direct
369337227 · Nov 6
$5,075 USD
View
10 more retailers have this diamond
Prices start from $2,840 USDSave up to $2,235 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
$2,840 USD