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Round|Natural|GIA

1.23ct I I1 Round Natural Diamond

EX • I/I1 • GIA 6512473251

Certificate GIA 6512473251

Diamond specifications and retailer prices

From €1,898 EUR
$2,120 USD
As of October 30, 2026
Save €63 EUR (3%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €1,960 EUR at Jared · As of October 30, 2026
View at Jared

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6512473251. Listed at 3 retailers as of October 30, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
I
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6512473251
Dimensions6.87 × 6.89 mm
L/W Ratio1.00
Top View
6.87 mm6.89 mm1.23 ctI / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512473251
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.2%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: €1,960 EUR|Low: €1,898 EUR|High: €2,390 EUR|Avg: €2,070 EUR|-18.0%
Jared
Retailer 2
Retailer 3
June 24, 2026
Retailer 2€1,898 EUR
Retailer 3€1,898 EUR
Jared€1,960 EUR

6 data points across 3 retailers

3 retailers€1,898 EUR to €1,960 EUR

B+
Cheapest Retailer
-
€1,898 EUR
$2,120 USD
B+
Retailer 2
-
€1,898 EUR
$2,120 USD
View
Most Expensive
B+
Jared
153697308 · Oct 30
€1,960 EUR
$2,190 USD
View
2 more retailers have this diamond
Prices start from €1,898 EURSave up to €63 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
€1,898 EUR