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Marquise|Natural|GIA

1.20ct L SI2 Marquise Natural Diamond

ID • L/SI2 • GIA 6551582399

Certificate GIA 6551582399

Diamond specifications and retailer prices

From $2,507 USD
As of November 6, 2026
3 retailers carry this diamond
Most expensive: $5,300 USD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551582399. Listed at 3 retailers as of November 6, 2026. 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
L
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551582399
Dimensions10.76 × 5.50 × 3.51 mm
L/W Ratio1.96
Girdle conditionFaceted
Top View
10.76 mm5.50 mm1.20 ctL / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551582399
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NDepth 63.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $2,186 USD|Low: $1,881 USD|High: $3,762 USD|Avg: $2,634 USD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
September 30, 2026
Retailer 2$1,881 USD
Retailer 1$2,186 USD
Retailer 7$2,316 USD
Retailer 6$2,378 USD
Retailer 3$2,400 USD
Retailer 8$2,507 USD
Retailer 5$3,101 USD
Retailer 9$3,224 USD
Retailer 4$3,736 USD

8 data points across 9 retailers

3 retailers

Retailer 1
-
$1,881 USD
Price last confirmed 38 days ago
B
Retailer 2
-
$2,507 USD
View
Most Expensive
NZ Jewellers
6de9829d-1cca-404f-87e3-70bb85cab040 · Sep 30
$5,300 USD
View
Price last confirmed 37 days ago
2 more retailers have this diamond
Prices start from $2,507 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 Marquise
$2,507 USD