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Marquise|Natural|IGI

1.51ct J SI2 Marquise Natural Diamond

VG • J/SI2 • IGI 803677736

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 803677736

Diamond specifications and retailer prices

From $2,845 AUD
As of November 5, 2026
Save $3,045 AUD (52%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,891 AUD 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 803677736. Listed at 6 retailers as of November 5, 2026, with prices from $2,845 to $5,891, a $3,045 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,891. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle39.2°
OriginNatural
Grading LabIGI
CertificateIGI 803677736
Dimensions10.72 × 5.79 × 3.81 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
10.72 mm5.79 mm1.51 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803677736
Side View
Table 60.0%Crown 43.9°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 65.8%

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 5
Current: $3,426 AUD|Low: $2,829 AUD|High: $6,716 AUD|Avg: $4,345 AUD|-13.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 6, 2026
Retailer 2$2,845 AUD
Retailer 7$2,872 AUD
Retailer 1$3,426 AUD
Retailer 3$3,435 AUD
Retailer 4$4,288 AUD
Retailer 8$4,449 AUD
Retailer 5$4,640 AUD
Retailer 6$5,606 AUD
Wholesale Diamonds Direct$5,891 AUD

31 data points across 9 retailers

6 retailers$2,845 AUD to $5,891 AUD

A
Cheapest Retailer
-
$2,845 AUD
A
Retailer 2
-
$3,426 AUD
View
A
Retailer 3
-
$3,435 AUD
View
B+
Retailer 4
-
$4,288 AUD
View
B+
Retailer 5
-
$4,449 AUD
View
Most Expensive
B+
Wholesale Diamonds Direct
262936441 · Nov 6
$5,891 AUD
$4,047 USD
View
5 more retailers have this diamond
Prices start from $2,845 AUDSave up to $3,045 AUD

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
$2,845 AUD