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Marquise|Natural|IGI

1.21ct J SI2 Marquise Natural Diamond

VG • J/SI2 • IGI 667406295

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 667406295

Diamond specifications and retailer prices

From $1,584 SGD
As of November 4, 2026
Save $2,166 SGD (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,750 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 667406295. Listed at 7 retailers as of November 4, 2026, with prices from $1,584 to $3,750, a $2,166 spread on the same certified stone. MOH London lists it at $3,750. 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

1.21
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle43.7°
Pavilion angle37.2°
OriginNatural
Grading LabIGI
CertificateIGI 667406295
Dimensions10.37 × 5.47 × 3.41 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Top View
10.37 mm5.47 mm1.21 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 667406295
Side View
Table 58.0%Crown 43.7°Girdle: MED-STKPavilion 37.2°Culet: NoneDepth 62.3%

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 4
Current: $3,750 SGD|Low: $1,465 SGD|High: $3,805 SGD|Avg: $2,154 SGD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$1,465 SGD
Retailer 7$1,584 SGD
Retailer 5$1,794 SGD
Retailer 6$1,999 SGD
Retailer 4$2,044 SGD
Retailer 2$2,138 SGD
Retailer 3$2,403 SGD
Retailer 9$2,429 SGD
MOH London$3,750 SGD

31 data points across 9 retailers

7 retailers$1,584 SGD to $3,750 SGD

A
Cheapest Retailer
-
$1,584 SGD
B+
Retailer 2
-
$1,794 SGD
View
Final sale: no returns
B+
Retailer 3
-
$1,999 SGD
View
B+
Retailer 4
-
$2,044 SGD
View
B+
Retailer 5
-
$2,138 SGD
View
B+
Retailer 6
-
$2,403 SGD
View
Most Expensive
B
MOH London
66795138C · Nov 4
$3,750 SGD
£2,304 GBP
View
6 more retailers have this diamond
Prices start from $1,584 SGDSave up to $2,166 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
1.21ct Marquise
$1,584 SGD