Round|Natural|HRD

1.55ct I SI2 Round Natural Diamond

EX • I/SI2 • HRD 260000142099

Certificate HRD 260000142099

Diamond specifications and retailer prices

From $2,937 USD
As of October 30, 2026
Save $2,304 USD (44%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,760 USD 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 25, 2026, with a 78% 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
Color
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 30
Current: $2,937 USD|Low: $2,937 USD|High: $5,588 USD|Avg: $3,730 USD|-5.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 1$2,937 USD
Retailer 2$3,030 USD
Retailer 4$3,306 USD
Retailer 3$5,241 USD

17 data points across 4 retailers

7 retailers$2,937 USD to $5,241 USD

A
Cheapest Retailer
-
$2,937 USD
A
Retailer 2
-
$3,030 USD
View
Retailer 3
-
$3,237 USD
View
Price last confirmed 23 days ago
Retailer 4
-
$3,306 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$3,378 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
$5,241 USD
£4,127 GBP
View
Most Expensive
NZ Jewellers
4bd9673d-67de-410c-aad1-8d729e96cc78 · Sep 19
$5,760 USD
View
Price last confirmed 42 days ago
6 more retailers have this diamond
Prices start from $2,937 USDSave up to $2,304 USD

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
$2,937 USD