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1.55ct I SI2 Round Natural Diamond

EX • I/SI2 • HRD 260000142099

Certificate HRD 260000142099

Diamond specifications and retailer prices

From $3,755 SGD
$2,937 USD
As of October 31, 2026
Save $2,904 SGD (44%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,364 SGD at NZ Jewellers · As of September 19, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by HRD 260000142099. Listed at 7 retailers as of October 31, 2026, with a 77% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.9°
OriginNatural
Grading LabHRD
CertificateHRD 260000142099
Dimensions7.38 × 7.43 × 4.54 mm
L/W Ratio1.01
Girdle conditionMedium
Top View
7.38 mm7.43 mm1.55 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000142099
Side View
Table 59.0%Crown 34.9°GirdlePavilion 40.9°Culet: NoneDepth 61.3%

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: Oct 31
Current: $6,658 SGD|Low: $3,755 SGD|High: $7,144 SGD|Avg: $4,761 SGD|-5.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 2$3,755 SGD
Retailer 3$3,874 SGD
Retailer 4$4,226 SGD
Retailer 1$6,658 SGD

18 data points across 4 retailers

7 retailers$3,755 SGD to $6,658 SGD

A
Cheapest Retailer
-
$3,755 SGD
$2,937 USD
A
Retailer 2
-
$3,874 SGD
$3,030 USD
View
Retailer 3
-
$4,138 SGD
$3,237 USD
View
Price last confirmed 25 days ago
Retailer 4
-
$4,226 SGD
$3,306 USD
View
Price last confirmed 39 days ago
Retailer 5
-
$4,318 SGD
$3,378 USD
View
Price last confirmed 33 days ago
B+
Retailer 6
-
$6,658 SGD
£4,101 GBP
View
Most Expensive
NZ Jewellers
4bd9673d-67de-410c-aad1-8d729e96cc78 · Sep 19
$7,364 SGD
$5,760 USD
View
Price last confirmed 43 days ago
6 more retailers have this diamond
Prices start from $3,755 SGDSave up to $2,904 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
$3,755 SGD