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Round|Natural|GIA

1.23ct D I1 Round Natural Diamond

EX • D/I1 • GIA 2554975942

Certificate GIA 2554975942

Diamond specifications and retailer prices

From €2,007 EUR
$2,242 USD
As of November 1, 2026
Save €2,743 EUR (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €4,750 EUR at NZ Jewellers · As of October 30, 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 D colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 2554975942. Listed at 7 retailers as of October 30, 2026, with prices from €2,007 to €4,750, a €2,743 spread on the same certified stone. NZ Jewellers lists it at €4,750. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2554975942
Dimensions6.82 × 6.87 × 4.29 mm
L/W Ratio1.01
Star length45%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle, Indented Natural
Top View
6.82 mm6.87 mm1.23 ctD / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554975942
Side View
Table 55.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €4,750 EUR|Low: €2,007 EUR|High: €5,272 EUR|Avg: €2,918 EUR|-9.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 2€2,007 EUR
Retailer 4€2,223 EUR
Retailer 7€2,272 EUR
Retailer 6€2,377 EUR
Retailer 5€2,622 EUR
Retailer 3€2,762 EUR
NZ Jewellers€4,750 EUR

31 data points across 7 retailers

7 retailers€2,007 EUR to €4,750 EUR

A
Cheapest Retailer
-
€2,007 EUR
$2,242 USD
A
Retailer 2
-
€2,223 EUR
$2,483 USD
View
A
Retailer 3
-
€2,272 EUR
$2,538 USD
View
B+
Retailer 4
-
€2,377 EUR
$2,656 USD
View
B+
Retailer 5
-
€2,622 EUR
$2,929 USD
View
B+
Retailer 6
-
€2,762 EUR
View
Most Expensive
B
NZ Jewellers
9d32aab0-a845-444c-a375-339c94a9fbc2 · Oct 30
€4,750 EUR
$5,307 USD
View
6 more retailers have this diamond
Prices start from €2,007 EURSave up to €2,743 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.

A
1.23ct Round
€2,007 EUR