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Cushion|Natural|IGI

1.51ct I SI2 Cushion Natural Diamond

VG • I/SI2 • IGI 729536826

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 729536826

Diamond specifications and retailer prices

From $5,112 SGD
As of November 4, 2026
Save $4,201 SGD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,313 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 729536826. Listed at 11 retailers as of November 4, 2026, with prices from $5,112 to $9,313, a $4,201 spread on the same certified stone. MOH London lists it at $9,313. 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
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 729536826
Dimensions10.88 × 6.05 × 3.91 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizePointed
Top View
10.88 mm6.05 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 729536826
Side View
Table 63.0%Crown 37.5°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 64.6%

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: Nov 4
Current: $9,313 SGD|Low: $3,494 SGD|High: $10,912 SGD|Avg: $6,385 SGD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4$3,494 SGD
Retailer 10$5,112 SGD
Retailer 5$5,158 SGD
Retailer 12$5,225 SGD
Retailer 11$5,411 SGD
Retailer 2$5,688 SGD
Retailer 7$5,815 SGD
Retailer 8$5,863 SGD
Retailer 9$6,054 SGD
Retailer 6$6,608 SGD
MOH London$9,313 SGD
Retailer 3$10,912 SGD

17 data points across 12 retailers

11 retailers$5,112 SGD to $9,313 SGD

B+
Cheapest Retailer
-
$5,112 SGD
A
Retailer 2
-
$5,158 SGD
View
B+
Retailer 3
-
$5,225 SGD
View
B+
Retailer 4
-
$5,411 SGD
View
Final sale: no returns
B+
Retailer 5
-
$5,688 SGD
View
B+
Retailer 6
-
$5,815 SGD
View
Retailer 7
-
$5,863 SGD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$5,863 SGD
View
B+
Retailer 9
-
$6,054 SGD
View
B+
Retailer 10
-
$6,608 SGD
View
Most Expensive
B
MOH London
B4A56073B · Nov 4
$9,313 SGD
£5,722 GBP
View
10 more retailers have this diamond
Prices start from $5,112 SGDSave up to $4,201 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
1.51ct Cushion
$5,112 SGD