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1.23ct J SI2 Round Natural Diamond

VG • J/SI2 • HRD 220000154301

Shape and cutting style on the report: Brilliant

Certificate HRD 220000154301

Diamond specifications and retailer prices

From $2,173 SGD
As of November 5, 2026
Save $3,645 SGD (63%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,818 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by HRD 220000154301. Listed at 11 retailers as of November 5, 2026, with prices from $2,173 to $5,818, a $3,645 spread on the same certified stone. NZ Jewellers lists it at $5,818. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceStrong
Crown angle36.6°
Pavilion angle40.9°
OriginNatural
Grading LabHRD
CertificateHRD 220000154301
Dimensions6.67 × 6.74 × 4.31 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.67 mm6.74 mm1.23 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateHRD 220000154301
Side View
Table 57.0%Crown 36.6°Girdle: MediumPavilion 40.9°Culet: NoneDepth 64.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $5,818 SGD|Low: $2,173 SGD|High: $5,818 SGD|Avg: $2,896 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 10$2,173 SGD
Retailer 11$2,201 SGD
Retailer 7$2,321 SGD
Retailer 5$2,385 SGD
Retailer 8$2,386 SGD
Retailer 3$2,401 SGD
Retailer 6$2,496 SGD
Retailer 9$2,753 SGD
Retailer 2$3,232 SGD
Retailer 4$4,167 SGD
NZ Jewellers$5,818 SGD

20 data points across 11 retailers

11 retailers$2,173 SGD to $5,818 SGD

B+
Cheapest Retailer
-
$2,173 SGD
B+
Retailer 2
-
$2,201 SGD
View
Final sale: no returns
B+
Retailer 3
-
$2,321 SGD
View
Retailer 4
-
$2,385 SGD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$2,386 SGD
View
B+
Retailer 6
-
$2,401 SGD
View
B+
Retailer 7
-
$2,496 SGD
View
B+
Retailer 8
-
$2,753 SGD
View
B
Retailer 9
-
$3,232 SGD
View
B
Retailer 10
-
$4,167 SGD
View
Most Expensive
C
NZ Jewellers
5b8088a0-7d8e-4b3c-b1ca-b7368b401de1 · Nov 5
$5,818 SGD
$4,555 USD
View
10 more retailers have this diamond
Prices start from $2,173 SGDSave up to $3,645 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+
1.23ct Round
$2,173 SGD