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1.55ct L SI1 Round Natural Diamond

EX • L/SI1 • IGI 670479391

Shape and cutting style on the report: Round brilliant

Certificate IGI 670479391

Diamond specifications and retailer prices

From $2,486 SGD
As of November 4, 2026
Save $3,269 SGD (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,754 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 670479391. Listed at 11 retailers as of November 4, 2026, with prices from $2,486 to $5,754, a $3,269 spread on the same certified stone. NZ Jewellers lists it at $5,754. 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
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.9°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 670479391
Dimensions7.36 × 7.43 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.36 mm7.43 mm1.55 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 670479391
Side View
Table 55.0%Crown 32.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.6%

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: $5,754 SGD|Low: $2,486 SGD|High: $6,270 SGD|Avg: $3,325 SGD|-1.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6$2,486 SGD
Retailer 3$2,636 SGD
Retailer 10$2,753 SGD
Retailer 9$2,778 SGD
Retailer 11$2,801 SGD
Retailer 7$2,879 SGD
Retailer 2$2,997 SGD
Retailer 8$3,175 SGD
Retailer 4$3,359 SGD
Retailer 5$3,416 SGD
NZ Jewellers$5,754 SGD

38 data points across 11 retailers

11 retailers$2,486 SGD to $5,754 SGD

A
Cheapest Retailer
-
$2,486 SGD
A
Retailer 2
-
$2,636 SGD
View
A
Retailer 3
-
$2,753 SGD
View
A
Retailer 4
-
$2,778 SGD
View
Retailer 5
-
$2,801 SGD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$2,879 SGD
View
A
Retailer 7
-
$2,997 SGD
View
A
Retailer 8
-
$3,175 SGD
View
A
Retailer 9
-
$3,359 SGD
View
B+
Retailer 10
-
$3,416 SGD
View
Most Expensive
B
NZ Jewellers
7dd6dd44-cec5-4278-a7e2-034ae5b383da · Nov 5
$5,754 SGD
$4,505 USD
View
10 more retailers have this diamond
Prices start from $2,486 SGDSave up to $3,269 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
1.55ct Round
$2,486 SGD