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Marquise|Natural|GIA

1.51ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 7558309385

Certificate GIA 7558309385

Diamond specifications and retailer prices

From $2,570 USD
As of November 5, 2026
Save $2,610 USD (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,180 USD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded K 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 7558309385. Listed at 10 retailers as of November 5, 2026, with prices from $2,570 to $5,180, a $2,610 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,180. 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
K
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.92°
Pavilion angle38.88°
OriginNatural
Grading LabGIA
CertificateGIA 7558309385
Dimensions11.13 × 5.88 × 3.73 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.13 mm5.88 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558309385
Side View
Table 59.0%Crown 39.92°Girdle: MED-THKPavilion 38.88°Culet: NoneDepth 63.5%

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: $3,067 USD|Low: $2,504 USD|High: $5,900 USD|Avg: $3,730 USD|-12.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 6, 2026
Retailer 3$2,504 USD
Retailer 6$2,570 USD
Retailer 7$2,844 USD
Retailer 1$3,067 USD
Retailer 4$3,202 USD
Retailer 10$3,427 USD
Retailer 8$3,651 USD
Retailer 9$3,731 USD
Retailer 5$3,783 USD
Retailer 2$3,879 USD
Retailer 11$4,879 USD
Wholesale Diamonds Direct$5,180 USD

33 data points across 12 retailers

10 retailers$2,570 USD to $5,180 USD

A
Cheapest Retailer
-
$2,570 USD
A
Retailer 2
-
$2,844 USD
View
A
Retailer 3
-
$3,067 USD
View
A
Retailer 4
-
$3,202 USD
View
A
Retailer 5
-
$3,427 USD
View
A
Retailer 6
-
$3,651 USD
View
A
Retailer 7
-
$3,731 USD
View
A
Retailer 8
-
$3,783 USD
View
B+
Retailer 9
-
$3,879 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
262936460 · Nov 6
$5,180 USD
View
9 more retailers have this diamond
Prices start from $2,570 USDSave up to $2,610 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
$2,570 USD