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Marquise|Natural|IGI

1.51ct M SI2 Marquise Natural Diamond

VG • M/SI2 • IGI 696515927

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 696515927

Diamond specifications and retailer prices

From $2,939 SGD
As of November 4, 2026
Save $854 SGD (23%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,804 SGD at NZ Jewellers · As of October 3, 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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 696515927. Listed at 11 retailers as of November 4, 2026, with a 29% 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

1.51
Carat
M
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 696515927
Dimensions11.60 × 6.03 × 3.85 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown
Top View
11.60 mm6.03 mm1.51 ctM / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 696515927
Side View
Table 58.0%Crown 33°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 63.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $6,804 SGD|Low: $1,816 SGD|High: $6,804 SGD|Avg: $3,464 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$1,816 SGD
Retailer 9$2,939 SGD
Retailer 8$3,067 SGD
Retailer 4$3,254 SGD
Retailer 6$3,254 SGD
Retailer 10$3,263 SGD
Retailer 7$3,433 SGD
Retailer 5$3,755 SGD
Retailer 2$3,792 SGD
Retailer 11$4,177 SGD
NZ Jewellers$6,804 SGD

19 data points across 11 retailers

11 retailers$2,939 SGD to $3,792 SGD

Retailer 1
-
$2,870 SGD
Price last confirmed 36 days ago
B+
Retailer 2
-
$2,939 SGD
View
B+
Retailer 3
-
$3,067 SGD
View
Retailer 4
-
$3,254 SGD
View
Price last confirmed 33 days ago
B+
Retailer 5
-
$3,254 SGD
View
Retailer 6
-
$3,254 SGD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
$3,433 SGD
View
Retailer 8
-
$3,755 SGD
View
Price last confirmed 33 days ago
B+
Retailer 9
-
$3,755 SGD
View
B+
Retailer 10
-
$3,792 SGD
View
Most Expensive
NZ Jewellers
a6ba854c-e077-4919-b9cc-a77dba299b5e · Oct 3
$6,804 SGD
$5,309 USD
View
Price last confirmed 34 days ago
10 more retailers have this diamond
Prices start from $2,939 SGDSave up to $854 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.

B+
1.51ct Marquise
$2,939 SGD