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Round|Natural|HRD

3.70ct K SI2 Round Natural Diamond

EX • K/SI2 • HRD 260000192985

Certificate HRD 260000192985

Diamond specifications and retailer prices

From $18,690 AUD
As of November 5, 2026
Save $13,566 AUD (42%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $32,256 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 3.7ct natural round diamond

This 3.7ct 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 260000192985. Listed at 12 retailers as of November 4, 2026, with prices from $18,690 to $32,256, a $13,566 spread on the same certified stone. MOH London lists it at $32,256. 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

3.70
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.6°
OriginNatural
Grading LabHRD
CertificateHRD 260000192985
Dimensions9.83 × 9.89 × 6.12 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
9.83 mm9.89 mm3.70 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000192985
Side View
Table 57.0%Crown 36.2°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.0%

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: $32,256 AUD|Low: $18,690 AUD|High: $32,732 AUD|Avg: $24,531 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 5$18,690 AUD
Retailer 12$20,892 AUD
Retailer 6$21,989 AUD
Retailer 4$22,129 AUD
Retailer 7$22,859 AUD
Retailer 8$24,383 AUD
Retailer 9$24,763 AUD
Retailer 2$24,932 AUD
Retailer 3$25,394 AUD
Retailer 10$25,716 AUD
Retailer 11$29,337 AUD
MOH London$32,256 AUD

38 data points across 12 retailers

12 retailers$18,690 AUD to $32,256 AUD

A
Cheapest Retailer
-
$18,690 AUD
A
Retailer 2
-
$20,892 AUD
View
A
Retailer 3
-
$21,989 AUD
View
A
Retailer 4
-
$22,129 AUD
View
Retailer 5
-
$22,859 AUD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$24,383 AUD
View
B+
Retailer 7
-
$24,763 AUD
View
A
Retailer 8
-
$24,932 AUD
View
B+
Retailer 9
-
$25,394 AUD
View
B+
Retailer 10
-
$25,716 AUD
View
B+
Retailer 11
-
$29,337 AUD
View
Most Expensive
B+
MOH London
B4712723D · Nov 4
$32,256 AUD
£17,780 GBP
View
11 more retailers have this diamond
Prices start from $18,690 AUDSave up to $13,566 AUD

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
3.70ct Round
$18,690 AUD