CaratHunter
Plans
Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 2245057622

Certificate GIA 2245057622

Diamond specifications and retailer prices

From $7,222 USD
As of November 3, 2026
Save $4,431 USD (38%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $11,653 USD at Helzberg Diamonds · As of November 3, 2026
View at Helzberg Diamonds

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245057622. Listed at 12 retailers as of November 3, 2026, with prices from $7,222 to $11,653, a $4,431 spread on the same certified stone. Helzberg Diamonds lists it at $11,653. 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

1.51
Carat
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.37°
Pavilion angle41.86°
OriginNatural
Grading LabGIA
CertificateGIA 2245057622
Dimensions11.44 × 6.05 × 3.87 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.44 mm6.05 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2245057622
Side View
Table 58.0%Crown 36.37°Girdle: STK-THKPavilion 41.86°Culet: NoneDepth 64.1%

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 3
Current: $11,653 USD|Low: $7,222 USD|High: $12,551 USD|Avg: $9,068 USD|-7.2%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$7,222 USD
Retailer 11$7,384 USD
Retailer 12$7,665 USD
Retailer 5$7,713 USD
Retailer 3$7,798 USD
Retailer 4$7,905 USD
Retailer 10$7,916 USD
Retailer 8$8,965 USD
Retailer 7$9,204 USD
Retailer 6$10,054 USD
Retailer 2$10,645 USD
Helzberg Diamonds$11,653 USD

39 data points across 12 retailers

12 retailers$7,222 USD to $11,653 USD

A
Cheapest Retailer
-
$7,222 USD
A
Retailer 2
-
$7,384 USD
View
A
Retailer 3
-
$7,665 USD
View
A
Retailer 4
-
$7,713 USD
View
A
Retailer 5
-
$7,798 USD
View
A
Retailer 6
-
$7,905 USD
View
A
Retailer 7
-
$7,916 USD
View
A
Retailer 8
-
$8,965 USD
View
A
Retailer 9
-
$9,204 USD
View
B+
Retailer 10
-
$10,054 USD
View
B+
Retailer 11
-
$10,645 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRIIKLGLNMII · Nov 3
$11,653 USD
View
11 more retailers have this diamond
Prices start from $7,222 USDSave up to $4,431 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
1.51ct Marquise
$7,222 USD