Marquise|Natural|GIA

1.20ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6552321194

Certificate GIA 6552321194

Diamond specifications and retailer prices

From $2,290 USD
As of November 5, 2026
Save $2,275 USD (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,565 USD at Wholesale Diamonds Direct · As of November 4, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552321194. Listed at 11 retailers as of November 4, 2026, with prices from $2,290 to $4,565, a $2,275 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,565. 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
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle39.29°
Pavilion angle38.47°
OriginNatural
Grading LabGIA
CertificateGIA 6552321194
Dimensions10.46 × 5.53 × 3.40 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.46 mm5.53 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552321194
Side View
Table 59.0%Crown 39.29°Girdle: THN-THKPavilion 38.47°Culet: NoneDepth 61.5%

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 5
Current: $2,290 USD|Low: $2,277 USD|High: $5,233 USD|Avg: $3,509 USD|-8.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 5, 2026
Retailer 1$2,290 USD
Retailer 2$2,804 USD
Retailer 9$2,812 USD
Retailer 7$3,052 USD
Retailer 5$3,274 USD
Retailer 8$3,314 USD
Retailer 6$3,373 USD
Retailer 4$3,381 USD
Retailer 3$4,274 USD
Wholesale Diamonds Direct$4,565 USD

33 data points across 10 retailers

11 retailers$2,290 USD to $4,565 USD

A
Cheapest Retailer
-
$2,290 USD
A
Retailer 2
-
$2,804 USD
View
A
Retailer 3
-
$2,812 USD
View
A
Retailer 4
-
$3,052 USD
View
B+
Retailer 5
-
$3,274 USD
View
B+
Retailer 6
-
$3,314 USD
View
B+
Retailer 7
-
$3,373 USD
View
B+
Retailer 8
-
$3,381 USD
View
B+
Retailer 9
-
$3,818 USD
View
B+
Retailer 10
-
$4,274 USD
View
Most Expensive
B
Wholesale Diamonds Direct
643534585 · Nov 4
$4,565 USD
View
10 more retailers have this diamond
Prices start from $2,290 USDSave up to $2,275 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
$2,290 USD