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1.23ct D SI2 Round Natural Diamond

EX • D/SI2 • HRD 240000225251

Certificate HRD 240000225251

Diamond specifications and retailer prices

From $3,405 USD
€3,243 EUR
As of October 29, 2026
1 retailer carries this diamond
Only listing: $3,405 USD at Belgium Diamonds
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Belgium Diamonds

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 HRD 240000225251. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
PolishVery Good
SymmetryExcellent
FluorescenceMedium
Crown angle36.7°
Pavilion angle40.8°
OriginNatural
Grading LabHRD
CertificateHRD 240000225251
Dimensions6.82 × 6.79 × 4.28 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.82 mm6.79 mm1.23 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateHRD 240000225251
Side View
Table 56.0%Crown 36.7°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.8%

Caratlytics Score

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

Last verified: Oct 29
Current: $3,405 USD|Low: $3,405 USD|High: $3,405 USD|Avg: $3,405 USD
February 18, 2026
Belgium Diamonds$3,405 USD

1 data point across 1 retailer

1 retailer

B+
Belgium Diamonds
429834818 · Oct 29
$3,405 USD
€3,243 EUR
View

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
$3,405 USD