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Marquise|Natural|IGI

1.51ct J SI2 Marquise Natural Diamond

EX • J/SI2 • IGI 762534384

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 762534384

Diamond specifications and retailer prices

From $3,079 USD
As of October 31, 2026
Save $2,963 USD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,042 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 762534384. Listed at 14 retailers as of October 30, 2026, with prices from $3,079 to $6,042, a $2,963 spread on the same certified stone. NZ Jewellers lists it at $6,042. 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
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 762534384
Dimensions11.68 × 5.98 × 3.75 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
Top View
11.68 mm5.98 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 762534384
Side View
Table 59.0%Crown 35.8°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.7%

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: Oct 31
Current: $6,042 USD|Low: $3,079 USD|High: $6,227 USD|Avg: $4,128 USD|-3.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 11$3,079 USD
Retailer 3$3,200 USD
Retailer 10$3,291 USD
Retailer 12$3,320 USD
Retailer 2$3,429 USD
Retailer 8$3,468 USD
Retailer 5$3,574 USD
Retailer 7$3,613 USD
Retailer 4$3,712 USD
Retailer 13$4,001 USD
Retailer 6$4,058 USD
Retailer 9$5,800 USD
NZ Jewellers$6,042 USD

45 data points across 13 retailers

14 retailers$3,079 USD to $6,042 USD

A
Cheapest Retailer
-
$3,079 USD
A
Retailer 2
-
$3,200 USD
View
Final sale: no returns
A
Retailer 3
-
$3,291 USD
View
A
Retailer 4
-
$3,320 USD
View
A
Retailer 5
-
$3,429 USD
£2,700 GBP
View
A
Retailer 6
-
$3,468 USD
View
A
Retailer 7
-
$3,574 USD
View
Retailer 8
-
$3,574 USD
View
Price last confirmed 17 days ago
A
Retailer 9
-
$3,613 USD
View
B+
Retailer 10
-
$3,712 USD
View
A
Retailer 11
-
$4,001 USD
View
A
Retailer 12
-
$4,058 USD
€3,865 EUR
View
B+
Retailer 13
-
$5,800 USD
£4,567 GBP
View
Most Expensive
B+
NZ Jewellers
c5fb1da5-b97b-4ff4-b4f0-bc743ac49258 · Oct 30
$6,042 USD
View
13 more retailers have this diamond
Prices start from $3,079 USDSave up to $2,963 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
$3,079 USD