CaratHunter
Plans
Marquise|Natural|GIA

1.50ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2564054571

Certificate GIA 2564054571

Diamond specifications and retailer prices

From $5,387 USD
As of November 6, 2026
Save $1,873 USD (26%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,260 USD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two 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 2564054571. Listed at 6 retailers as of November 6, 2026, with prices from $5,387 to $7,260, a $1,873 spread on the same certified stone. 77 Diamonds lists it at $7,260. 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
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564054571
Dimensions11.95 × 6.01 × 3.50 mm
L/W Ratio1.99
Culet sizeVery Small
Key to symbols
Twinning Wisp, Feather, Cavity, Indented Natural, Natural
Top View
11.95 mm6.01 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2564054571
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: Very SmallDepth 58.4%

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: $7,260 USD|Low: $5,387 USD|High: $7,332 USD|Avg: $6,336 USD|+7.7%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$5,387 USD
Retailer 4$6,827 USD
Retailer 3$7,121 USD
77 Diamonds$7,260 USD

46 data points across 4 retailers

6 retailers$5,387 USD to $7,260 USD

A
Cheapest Retailer
-
$5,387 USD
B+
Retailer 2
-
$6,421 USD
View
B+
Retailer 3
-
$6,784 USD
View
B+
Retailer 4
-
$6,827 USD
View
B+
Retailer 5
-
$7,121 USD
View
Most Expensive
B+
77 Diamonds
MQCPDDXA4VGA · Nov 6
$7,260 USD
£5,717 GBP
View
5 more retailers have this diamond
Prices start from $5,387 USDSave up to $1,873 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
$5,387 USD