Round|Natural|GIA

1.23ct J IF Round Natural Diamond

EX • J/IF • GIA 7556302642

Certificate GIA 7556302642

Diamond specifications and retailer prices

From €3,991 EUR
£3,511 GBP
As of October 30, 2026
Save €3,122 EUR (44%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €7,739 EUR 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 October 29, 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
Color
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: Oct 30
Current: €4,792 EUR|Low: €3,246 EUR|High: €7,160 EUR|Avg: €4,776 EUR|+4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 2€3,991 EUR
Retailer 6€4,082 EUR
Retailer 5€4,100 EUR
Retailer 1€4,792 EUR
Retailer 4€4,922 EUR
Retailer 3€7,113 EUR

40 data points across 6 retailers

7 retailers€3,991 EUR to €7,113 EUR

B+
Cheapest Retailer
-
€3,991 EUR
£3,511 GBP
B+
Retailer 2
-
€4,082 EUR
$4,560 USD
View
B
Retailer 3
-
€4,100 EUR
$4,581 USD
View
Final sale: no returns
B+
Retailer 4
-
€4,792 EUR
View
B
Retailer 5
-
€4,922 EUR
£4,330 GBP
View
B
Retailer 6
-
€7,113 EUR
£6,257 GBP
View
Most Expensive
NZ Jewellers
0c331be8-f492-4e14-92be-86c71bb00789 · Oct 3
€7,739 EUR
$8,646 USD
View
Price last confirmed 28 days ago
6 more retailers have this diamond
Prices start from €3,991 EURSave up to €3,122 EUR

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
€3,991 EUR