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Round|Natural|GIA

1.23ct J IF Round Natural Diamond

EX • J/IF • GIA 7556302642

Certificate GIA 7556302642

Diamond specifications and retailer prices

From $7,888 NZD
£3,500 GBP
As of November 1, 2026
Save $6,137 NZD (44%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $15,341 NZD at NZ Jewellers · As of October 3, 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 7556302642. Listed at 7 retailers as of November 1, 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. 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
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7556302642
Dimensions6.78 × 6.83 × 4.27 mm
L/W Ratio1.01
Star length50%
Top View
6.78 mm6.83 mm1.23 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556302642
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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 1
Current: $9,459 NZD|Low: $6,435 NZD|High: $14,194 NZD|Avg: $9,511 NZD|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2$7,888 NZD
Retailer 6$8,091 NZD
Retailer 5$8,128 NZD
Retailer 1$9,459 NZD
Retailer 4$9,757 NZD
Retailer 3$14,025 NZD

40 data points across 6 retailers

7 retailers$7,888 NZD to $14,025 NZD

B+
Cheapest Retailer
-
$7,888 NZD
£3,500 GBP
B+
Retailer 2
-
$8,091 NZD
$4,560 USD
View
B
Retailer 3
-
$8,128 NZD
$4,581 USD
View
Final sale: no returns
B+
Retailer 4
-
$9,459 NZD
€5,077 EUR
View
B
Retailer 5
-
$9,757 NZD
£4,330 GBP
View
B
Retailer 6
-
$14,025 NZD
£6,224 GBP
View
Most Expensive
NZ Jewellers
0c331be8-f492-4e14-92be-86c71bb00789 · Oct 3
$15,341 NZD
$8,646 USD
View
Price last confirmed 30 days ago
6 more retailers have this diamond
Prices start from $7,888 NZDSave up to $6,137 NZD

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
$7,888 NZD