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Marquise|Natural|IGI

0.40ct J SI1 Marquise Natural Diamond

VG • J/SI1 • IGI 815673836

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 815673836

Diamond specifications and retailer prices

From $324 SGD
₹24,113 INR
As of November 2, 2026
Save $709 SGD (69%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,714 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815673836. Listed at 14 retailers as of November 1, 2026, with a 219% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.40
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle31.1°
Pavilion angle37.9°
OriginNatural
Grading LabIGI
CertificateIGI 815673836
Dimensions7.80 × 3.91 × 2.21 mm
L/W Ratio1.99
Girdle conditionFaceted
Top View
7.80 mm3.91 mm0.40 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 815673836
Side View
Table 60.0%Crown 31.1°Girdle: STK-THKPavilion 37.9°Culet: NoneDepth 56.5%

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 2
Current: $1,714 SGD|Low: $323 SGD|High: $1,714 SGD|Avg: $709 SGD
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
Retailer 14
November 2, 2026
Retailer 2$324 SGD
Retailer 3$448 SGD
Retailer 13$481 SGD
Retailer 14$499 SGD
Retailer 9$600 SGD
Retailer 4$602 SGD
Retailer 6$614 SGD
Retailer 5$665 SGD
Retailer 11$693 SGD
Retailer 12$729 SGD
Retailer 8$747 SGD
Retailer 7$905 SGD
Retailer 10$1,033 SGD
NZ Jewellers$1,714 SGD

26 data points across 14 retailers

14 retailers$324 SGD to $1,033 SGD

A
Cheapest Retailer
-
$324 SGD
₹24,113 INR
B+
Retailer 2
-
$448 SGD
$350 USD
View
B+
Retailer 3
-
$481 SGD
$376 USD
View
B+
Retailer 4
-
$499 SGD
$390 USD
View
B
Retailer 5
-
$600 SGD
£369 GBP
View
B
Retailer 6
-
$602 SGD
$471 USD
View
B
Retailer 7
-
$614 SGD
$480 USD
View
B
Retailer 8
-
$665 SGD
$520 USD
View
B
Retailer 9
-
$693 SGD
ZAR 8,756 ZAR
View
B
Retailer 10
-
$729 SGD
$570 USD
View
B
Retailer 11
-
$747 SGD
€556 EUR
View
B
Retailer 12
-
$905 SGD
£557 GBP
View
C
Retailer 13
-
$1,033 SGD
£636 GBP
View
Most Expensive
NZ Jewellers
0e246bed-4df9-43ac-ae3a-e943e6adb500 · Oct 30
$1,714 SGD
$1,340 USD
View
Price under review
13 more retailers have this diamond
Prices start from $324 SGDSave up to $709 SGD

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
0.40ct Marquise
$324 SGD