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Marquise|Natural|IGI

1.20ct H SI1 Marquise Natural Diamond

VG • H/SI1 • IGI 836680016

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 836680016

Diamond specifications and retailer prices

From $3,549 SGD
As of November 2, 2026
Save $2,827 SGD (44%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $6,375 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 836680016. Listed at 4 retailers as of November 2, 2026, with prices from $3,549 to $6,375, a $2,827 spread on the same certified stone. MOH London lists it at $6,375. 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

1.20
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle42.1°
OriginNatural
Grading LabIGI
CertificateIGI 836680016
Dimensions9.65 × 5.45 × 3.77 mm
L/W Ratio1.77
Girdle conditionFaceted
Top View
9.65 mm5.45 mm1.20 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 836680016
Side View
Table 64.0%Crown 42.8°Girdle: THK-VTKPavilion 42.1°CuletDepth 69.2%

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: $6,375 SGD|Low: $3,547 SGD|High: $6,484 SGD|Avg: $4,375 SGD|-1.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 2$3,549 SGD
Retailer 3$3,569 SGD
Retailer 4$3,794 SGD
MOH London$6,375 SGD

28 data points across 4 retailers

4 retailers$3,549 SGD to $6,375 SGD

A
Cheapest Retailer
-
$3,549 SGD
A
Retailer 2
-
$3,569 SGD
View
B+
Retailer 3
-
$3,794 SGD
View
Most Expensive
B
MOH London
932FB9687 · Nov 2
$6,375 SGD
£3,917 GBP
View
3 more retailers have this diamond
Prices start from $3,549 SGDSave up to $2,827 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
1.20ct Marquise
$3,549 SGD