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Marquise|Natural|IGI

1.51ct E SI2 Marquise Natural Diamond

VG • E/SI2 • IGI 830653179

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 830653179

Diamond specifications and retailer prices

From $8,402 AUD
SGD 7,976 SGD
As of October 29, 2026
Save $6,495 AUD (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $14,897 AUD at Wholesale Diamonds Direct · As of October 27, 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 E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 830653179. Listed at 8 retailers as of October 27, 2026, with prices from $8,402 to $14,897, a $6,495 spread on the same certified stone. Wholesale Diamonds Direct lists it at $14,897. 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
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle38.1°
OriginNatural
Grading LabIGI
CertificateIGI 830653179
Dimensions12.37 × 5.77 × 3.45 mm
L/W Ratio2.14
Girdle conditionFaceted
Top View
12.37 mm5.77 mm1.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 830653179
Side View
Table 60.0%Crown 39.7°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 59.8%

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: Oct 29
Current: $10,253 AUD|Low: $8,402 AUD|High: $14,897 AUD|Avg: $10,503 AUD|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
October 31, 2026
Retailer 3$8,402 AUD
Retailer 2$8,534 AUD
Retailer 5$8,542 AUD
Retailer 4$8,735 AUD
Retailer 7$10,158 AUD
Retailer 1$10,253 AUD
Retailer 6$13,252 AUD
Wholesale Diamonds Direct$14,897 AUD

16 data points across 8 retailers

8 retailers$8,402 AUD to $14,897 AUD

A
Cheapest Retailer
-
$8,402 AUD
SGD 7,976 SGD
A
Retailer 2
-
$8,534 AUD
$5,995 USD
View
A
Retailer 3
-
$8,542 AUD
$6,000 USD
View
A
Retailer 4
-
$8,735 AUD
$6,136 USD
View
A
Retailer 5
-
$10,158 AUD
$7,135 USD
View
A
Retailer 6
-
$10,253 AUD
€6,859 EUR
View
B+
Retailer 7
-
$13,252 AUD
$9,309 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
611240292 · Oct 27
$14,897 AUD
$10,464 USD
View
7 more retailers have this diamond
Prices start from $8,402 AUDSave up to $6,495 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
$8,402 AUD