CaratHunter
Plans
Round|Natural|HRD

1.00ct J SI1 Round Natural Diamond

EX • J/SI1 • HRD 260000116770

Certificate HRD 260000116770

Diamond specifications and retailer prices

From $1,447 SGD
As of November 6, 2026
Save $3,251 SGD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,698 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by HRD 260000116770. Listed at 15 retailers as of November 5, 2026, with prices from $1,447 to $4,698, a $3,251 spread on the same certified stone. NZ Jewellers lists it at $4,698. 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

1.00
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.8°
OriginNatural
Grading LabHRD
CertificateHRD 260000116770
Dimensions6.34 × 6.39 × 4.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.34 mm6.39 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000116770
Side View
Table 56.0%Crown 36.6°Girdle: MED-MEDPavilion 40.8°Culet: NoneDepth 62.9%

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: Nov 6
Current: $4,698 SGD|Low: $1,447 SGD|High: $4,819 SGD|Avg: $2,417 SGD|-2.5%
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
November 6, 2026
Retailer 2$1,447 SGD
Retailer 9$1,765 SGD
Retailer 4$1,777 SGD
Retailer 12$1,802 SGD
Retailer 5$1,926 SGD
Retailer 13$2,014 SGD
Retailer 7$2,160 SGD
Retailer 3$2,223 SGD
Retailer 8$2,245 SGD
Retailer 11$2,511 SGD
Retailer 6$2,776 SGD
Retailer 14$3,179 SGD
Retailer 10$3,366 SGD
NZ Jewellers$4,698 SGD

34 data points across 14 retailers

15 retailers$1,447 SGD to $4,698 SGD

A
Cheapest Retailer
-
$1,447 SGD
A
Retailer 2
-
$1,765 SGD
View
A
Retailer 3
-
$1,777 SGD
View
Final sale: no returns
A
Retailer 4
-
$1,802 SGD
View
A
Retailer 5
-
$1,926 SGD
View
A
Retailer 6
-
$2,014 SGD
View
B+
Retailer 7
-
$2,148 SGD
View
A
Retailer 8
-
$2,160 SGD
View
B+
Retailer 9
-
$2,223 SGD
View
A
Retailer 10
-
$2,245 SGD
View
B+
Retailer 11
-
$2,511 SGD
View
B+
Retailer 12
-
$2,776 SGD
View
B
Retailer 13
-
$3,179 SGD
View
B
Retailer 14
-
$3,366 SGD
View
Most Expensive
B
NZ Jewellers
09ec0cc1-6dc2-4b6c-825e-9b34c40caf83 · Nov 5
$4,698 SGD
$3,678 USD
View
14 more retailers have this diamond
Prices start from $1,447 SGDSave up to $3,251 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
1.00ct Round
$1,447 SGD