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Marquise|Natural|GIA

1.50ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 2557644890

Certificate GIA 2557644890

Diamond specifications and retailer prices

From $6,465 USD
As of November 6, 2026
Save $1,665 USD (20%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $8,130 USD at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded G 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 2557644890. Listed at 6 retailers as of November 6, 2026, with prices from $6,465 to $8,130, a $1,665 spread on the same certified stone. GemTrove lists it at $8,130. 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

1.50
Carat
G
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557644890
Dimensions11.11 × 5.86 × 3.77 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
11.11 mm5.86 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557644890
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.3%

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: $6,465 USD|Low: $6,182 USD|High: $7,633 USD|Avg: $6,961 USD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 1$6,465 USD
Retailer 3$6,748 USD
Retailer 4$7,021 USD
Retailer 2$7,159 USD
Retailer 5$7,306 USD

46 data points across 5 retailers

6 retailers$6,465 USD to $8,130 USD

A
Cheapest Retailer
-
$6,465 USD
A
Retailer 2
-
$6,748 USD
View
A
Retailer 3
-
$7,021 USD
View
A
Retailer 4
-
$7,159 USD
View
B+
Retailer 5
-
$7,306 USD
View
Final sale: no returns
Most Expensive
B+
GemTrove
GT-N-01274160-98 · Nov 6
$8,130 USD
A$12,508 AUD
View
5 more retailers have this diamond
Prices start from $6,465 USDSave up to $1,665 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
1.50ct Marquise
$6,465 USD