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Round|Natural|IGI

1.55ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 536201745

Shape and cutting style on the report: Round brilliant

Certificate IGI 536201745

Diamond specifications and retailer prices

From $6,446 SGD
As of November 6, 2026
Save $5,766 SGD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,213 SGD at Allurez · As of November 5, 2026
View at Allurez

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 536201745. Listed at 15 retailers as of November 5, 2026, with prices from $6,446 to $12,213, a $5,766 spread on the same certified stone. Allurez lists it at $12,213. 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

1.55
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 536201745
Dimensions7.41 × 7.37 × 4.62 mm
L/W Ratio1.01
Culet sizePointed
Top View
7.41 mm7.37 mm1.55 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 536201745
Side View
Table 57.5%Crown 34.5°Girdle: MediumPavilion 41.4°Culet: NoneDepth 62.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $12,213 SGD|Low: $3,536 SGD|High: $12,213 SGD|Avg: $4,781 SGD
Allurez
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
November 3, 2026
Retailer 12$3,781 SGD
Retailer 7$3,835 SGD
Retailer 14$3,858 SGD
Retailer 8$4,050 SGD
Retailer 4$4,181 SGD
Retailer 6$4,181 SGD
Retailer 16$4,341 SGD
Retailer 2$4,343 SGD
Retailer 3$4,823 SGD
Retailer 11$4,842 SGD
Retailer 10$4,862 SGD
Retailer 9$5,044 SGD
Retailer 15$5,052 SGD
Retailer 13$7,027 SGD
Retailer 5$7,282 SGD
Allurez$12,213 SGD

30 data points across 16 retailers

15 retailers$6,446 SGD to $12,213 SGD

Retailer 1
-
$3,781 SGD
Price last confirmed 19 days ago
Retailer 2
-
$3,835 SGD
View
Price last confirmed 14 days ago
Retailer 3
-
$4,050 SGD
View
Price last confirmed 14 days ago
Retailer 4
-
$4,181 SGD
View
Price last confirmed 21 days ago
Retailer 5
-
$4,181 SGD
View
Price last confirmed 15 days ago
Retailer 6
-
$4,341 SGD
View
Price last confirmed 15 days ago
Retailer 7
-
$4,343 SGD
View
Price last confirmed 14 days ago
Retailer 8
-
$4,364 SGD
View
Price last confirmed 19 days ago
Retailer 9
-
$4,823 SGD
View
Price last confirmed 14 days ago
Retailer 10
-
$4,842 SGD
View
Price last confirmed 14 days ago
Retailer 11
-
$5,044 SGD
View
Price last confirmed 15 days ago
B
Retailer 12
-
$6,446 SGD
View
Retailer 13
-
$7,027 SGD
View
Price last confirmed 16 days ago
Retailer 14
-
$7,282 SGD
View
Price last confirmed 17 days ago
Most Expensive
C
Allurez
5853908 · Nov 5
$12,213 SGD
$9,529 USD
View
14 more retailers have this diamond
Prices start from $6,446 SGDSave up to $5,766 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
1.55ct Round
$6,446 SGD