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3.73ct K SI2 Round Natural Diamond

EX • K/SI2 • HRD 250000210709

Certificate HRD 250000210709

Diamond specifications and retailer prices

From $18,257 USD
As of November 5, 2026
Save $7,742 USD (30%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $25,999 USD at MOH London · As of November 4, 2026
View at MOH London

About this 3.73ct natural round diamond

This 3.73ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by HRD 250000210709. Listed at 7 retailers as of November 4, 2026, with prices from $18,257 to $25,999, a $7,742 spread on the same certified stone. MOH London lists it at $25,999. 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

3.73
Carat
K
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.9°
OriginNatural
Grading LabHRD
CertificateHRD 250000210709
Dimensions9.88 × 9.80 × 6.13 mm
L/W Ratio1.01
Star length55%
Culet sizePointed
Top View
9.88 mm9.80 mm3.73 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 250000210709
Side View
Table 59.0%Crown 36.1°GirdlePavilion 40.9°Culet: NoneDepth 62.2%

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 5
Current: $25,999 USD|Low: $16,939 USD|High: $26,383 USD|Avg: $20,748 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 8$16,939 USD
Retailer 2$18,257 USD
Retailer 7$18,425 USD
Retailer 5$19,346 USD
Retailer 4$19,960 USD
Retailer 6$20,728 USD
Retailer 9$22,733 USD
Retailer 3$23,647 USD
MOH London$25,999 USD

20 data points across 9 retailers

7 retailers$18,257 USD to $25,999 USD

A
Cheapest Retailer
-
$18,257 USD
Retailer 2
-
$18,425 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$19,346 USD
View
B+
Retailer 4
-
$19,960 USD
View
B+
Retailer 5
-
$20,728 USD
View
B+
Retailer 6
-
$23,647 USD
View
Most Expensive
B+
MOH London
A86978A45 · Nov 4
$25,999 USD
£20,472 GBP
View
6 more retailers have this diamond
Prices start from $18,257 USDSave up to $7,742 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.

A
3.73ct Round
$18,257 USD