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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 $10,472 NZD
SGD 7,976 SGD
As of October 31, 2026
Save $8,094 NZD (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $18,567 NZD 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 $10,472 to $18,567, a $8,094 spread on the same certified stone. Wholesale Diamonds Direct lists it at $18,567. 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 31
Current: $12,778 NZD|Low: $10,472 NZD|High: $18,567 NZD|Avg: $13,091 NZD|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
October 31, 2026
Retailer 3$10,472 NZD
Retailer 2$10,637 NZD
Retailer 5$10,646 NZD
Retailer 4$10,887 NZD
Retailer 7$12,660 NZD
Retailer 1$12,778 NZD
Retailer 6$16,517 NZD
Wholesale Diamonds Direct$18,567 NZD

16 data points across 8 retailers

8 retailers$10,472 NZD to $18,567 NZD

A
Cheapest Retailer
-
$10,472 NZD
SGD 7,976 SGD
A
Retailer 2
-
$10,637 NZD
$5,995 USD
View
A
Retailer 3
-
$10,646 NZD
$6,000 USD
View
A
Retailer 4
-
$10,887 NZD
$6,136 USD
View
A
Retailer 5
-
$12,660 NZD
$7,135 USD
View
A
Retailer 6
-
$12,778 NZD
€6,859 EUR
View
B+
Retailer 7
-
$16,517 NZD
$9,309 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
611240292 · Oct 27
$18,567 NZD
$10,464 USD
View
7 more retailers have this diamond
Prices start from $10,472 NZDSave up to $8,094 NZD

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
$10,472 NZD