Round|Natural|GIA

1.23ct I I1 Round Natural Diamond

EX • I/I1 • GIA 6512473251

Certificate GIA 6512473251

Diamond specifications and retailer prices

From $2,120 USD
As of October 30, 2026
Save $70 USD (3%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,190 USD at Jared · As of November 2, 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 November 2, 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

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $2,190 USD|Low: $2,120 USD|High: $2,670 USD|Avg: $2,313 USD|-18.0%
Jared
Retailer 2
Retailer 3
June 24, 2026
Retailer 2$2,120 USD
Retailer 3$2,120 USD
Jared$2,190 USD

6 data points across 3 retailers

3 retailers$2,120 USD to $2,190 USD

B+
Cheapest Retailer
-
$2,120 USD
B+
Retailer 2
-
$2,120 USD
View
Most Expensive
B+
Jared
153697308 · Nov 2
$2,190 USD
View
2 more retailers have this diamond
Prices start from $2,120 USDSave up to $70 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
$2,120 USD