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1.23ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 7501610057

Certificate GIA 7501610057

Diamond specifications and retailer prices

From $5,753 USD
£4,530 GBP
As of October 29, 2026
Save $31 USD (1%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $5,784 USD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7501610057. Listed at 2 retailers as of October 29, 2026, with a relatively tight 1% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.23
Carat
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7501610057
Dimensions6.87 × 6.93 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
Additional twinning wisps pinpoints and surface graining are not shown.
Key to symbols
Twinning Wisp, Crystal, Feather, Cavity, Needle
Top View
6.87 mm6.93 mm1.23 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7501610057
Side View
Table 56.0%Crown 35.5°Girdle: MediumPavilion 41°CuletDepth 61.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $5,784 USD|Low: $5,784 USD|High: $5,784 USD|Avg: $5,784 USD
September 26, 2026
Diamond Quarter$5,784 USD

1 data point across 1 retailer

2 retailers$5,753 USD to $5,784 USD

B
Cheapest Retailer
-
$5,753 USD
£4,530 GBP
Most Expensive
B
Diamond Quarter
1.230SI2D75576642P · Oct 29
$5,784 USD
£4,555 GBP
View
1 more retailer has this diamond
Prices start from $5,753 USDSave up to $31 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
$5,753 USD