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Round|Natural|GIA

1.23ct J IF Round Natural Diamond

EX • J/IF • GIA 1557801478

Certificate GIA 1557801478

Diamond specifications and retailer prices

From $4,016 USD
A$6,178 AUD
As of October 31, 2026
9 retailers carry this diamond
Most expensive: $6,989 USD at NZ Jewellers · As of October 6, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 1557801478. Listed at 9 retailers as of October 31, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
J
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1557801478
Dimensions6.75 × 6.81 × 4.25 mm
L/W Ratio1.01
Top View
6.75 mm6.81 mm1.23 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1557801478
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $6,989 USD|Low: $2,944 USD|High: $7,054 USD|Avg: $4,275 USD|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 7, 2026
Retailer 8$2,944 USD
Retailer 10$3,576 USD
Retailer 4$3,627 USD
Retailer 9$3,739 USD
Retailer 5$4,011 USD
Retailer 3$4,016 USD
Retailer 11$4,049 USD
Retailer 6$4,380 USD
Retailer 2$4,435 USD
Retailer 7$6,789 USD
NZ Jewellers$6,989 USD

17 data points across 11 retailers

9 retailers

Retailer 1
-
$2,944 USD
HK$23,000 HKD
Price last confirmed 20 days ago
Retailer 2
-
$3,576 USD
View
Price last confirmed 11 days ago
Retailer 3
-
$3,627 USD
£2,856 GBP
View
Price last confirmed 24 days ago
Retailer 4
-
$3,739 USD
SGD 5,053 SGD
View
Price last confirmed 24 days ago
Retailer 5
-
$4,011 USD
View
Price last confirmed 24 days ago
B+
Retailer 6
-
$4,016 USD
A$6,178 AUD
View
Retailer 7
-
$4,049 USD
View
Price last confirmed 32 days ago
Retailer 8
-
$6,789 USD
£5,346 GBP
View
Price last confirmed 26 days ago
Most Expensive
NZ Jewellers
f286b7d2-b21d-4d38-a1c6-0baaf2cd7af2 · Oct 6
$6,989 USD
View
Price last confirmed 25 days ago
8 more retailers have this diamond
Prices start from $4,016 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
$4,016 USD