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1.50ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 754512323

Shape and cutting style on the report: Round brilliant

Certificate IGI 754512323

Diamond specifications and retailer prices

From $3,640 SGD
₹270,417 INR
As of October 29, 2026
Save $4,202 SGD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,843 SGD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 754512323. Listed at 18 retailers as of October 27, 2026, with prices from $3,640 to $7,843, a $4,202 spread on the same certified stone. NZ Jewellers lists it at $7,843. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 754512323
Dimensions7.21 × 7.25 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.21 mm7.25 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 754512323
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.4%

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: Oct 29
Current: $7,843 SGD|Low: $3,624 SGD|High: $8,091 SGD|Avg: $5,048 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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 2$3,640 SGD
Retailer 16$3,872 SGD
Retailer 7$3,996 SGD
Retailer 5$4,057 SGD
Retailer 8$4,154 SGD
Retailer 18$4,413 SGD
Retailer 6$4,501 SGD
Retailer 13$4,501 SGD
Retailer 4$4,580 SGD
Retailer 14$4,675 SGD
Retailer 15$4,687 SGD
Retailer 11$4,897 SGD
Retailer 10$5,194 SGD
Retailer 3$5,219 SGD
Retailer 12$5,229 SGD
Retailer 9$6,905 SGD
Retailer 17$7,537 SGD
NZ Jewellers$7,843 SGD

36 data points across 18 retailers

18 retailers$3,640 SGD to $7,843 SGD

A
Cheapest Retailer
-
$3,640 SGD
₹270,417 INR
A
Retailer 2
-
$3,872 SGD
$3,020 USD
View
A
Retailer 3
-
$3,996 SGD
$3,117 USD
View
A
Retailer 4
-
$4,057 SGD
View
A
Retailer 5
-
$4,154 SGD
$3,240 USD
View
Final sale: no returns
A
Retailer 6
-
$4,413 SGD
$3,442 USD
View
A
Retailer 7
-
$4,501 SGD
$3,511 USD
View
A
Retailer 8
-
$4,501 SGD
$3,511 USD
View
A
Retailer 9
-
$4,580 SGD
$3,572 USD
View
A
Retailer 10
-
$4,675 SGD
$3,646 USD
View
A
Retailer 11
-
$4,687 SGD
$3,656 USD
View
A
Retailer 12
-
$4,897 SGD
£3,008 GBP
View
A
Retailer 13
-
$5,194 SGD
$4,051 USD
View
A
Retailer 14
-
$5,219 SGD
£3,205 GBP
View
A
Retailer 15
-
$5,229 SGD
€3,884 EUR
View
B+
Retailer 16
-
$6,905 SGD
$5,386 USD
View
B+
Retailer 17
-
$7,537 SGD
£4,629 GBP
View
Most Expensive
B+
NZ Jewellers
00c94c50-0d12-4257-bd7e-735e84b4e8fe · Oct 27
$7,843 SGD
$6,117 USD
View
17 more retailers have this diamond
Prices start from $3,640 SGDSave up to $4,202 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
1.50ct Round
$3,640 SGD