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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 $1,701 USD
As of November 5, 2026
Save $2,854 USD (63%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,555 USD 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 $1,701 to $4,555, a $2,854 spread on the same certified stone. NZ Jewellers lists it at $4,555. 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
Color
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: $4,555 USD|Low: $1,701 USD|High: $4,555 USD|Avg: $2,267 USD
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$1,701 USD
Retailer 11$1,723 USD
Retailer 7$1,817 USD
Retailer 5$1,867 USD
Retailer 8$1,868 USD
Retailer 3$1,880 USD
Retailer 6$1,954 USD
Retailer 9$2,155 USD
Retailer 2$2,530 USD
Retailer 4$3,262 USD
NZ Jewellers$4,555 USD

20 data points across 11 retailers

11 retailers$1,701 USD to $4,555 USD

B+
Cheapest Retailer
-
$1,701 USD
B+
Retailer 2
-
$1,723 USD
View
Final sale: no returns
B+
Retailer 3
-
$1,817 USD
View
Retailer 4
-
$1,867 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,868 USD
View
B+
Retailer 6
-
$1,880 USD
View
B+
Retailer 7
-
$1,954 USD
View
B+
Retailer 8
-
$2,155 USD
View
B
Retailer 9
-
$2,530 USD
View
B
Retailer 10
-
$3,262 USD
View
Most Expensive
C
NZ Jewellers
5b8088a0-7d8e-4b3c-b1ca-b7368b401de1 · Nov 5
$4,555 USD
View
10 more retailers have this diamond
Prices start from $1,701 USDSave up to $2,854 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.

B+
1.23ct Round
$1,701 USD