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3.18ct M SI1 Round Natural Diamond

EX • M/SI1 • HRD 240000067256

Certificate HRD 240000067256

Diamond specifications and retailer prices

From $12,129 SGD
As of November 5, 2026
Save $11,428 SGD (49%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $23,557 SGD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 3.18ct natural round diamond

This 3.18ct natural round sits in the three to five carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by HRD 240000067256. Listed at 8 retailers as of November 2, 2026, with prices from $12,129 to $23,557, a $11,428 spread on the same certified stone. NZ Jewellers lists it at $23,557. 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

3.18
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.6°
Pavilion angle41°
OriginNatural
Grading LabHRD
CertificateHRD 240000067256
Dimensions9.28 × 9.35 × 5.86 mm
L/W Ratio1.01
Top View
9.28 mm9.35 mm3.18 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateHRD 240000067256
Side View
Table 57.0%Crown 35.6°Girdle: MED-MEDPavilion 41°Culet: NoneDepth 62.9%

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: $23,557 SGD|Low: $12,129 SGD|High: $23,557 SGD|Avg: $16,575 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 2$12,129 SGD
Retailer 9$14,175 SGD
Retailer 4$14,474 SGD
Retailer 8$15,601 SGD
Retailer 5$16,642 SGD
Retailer 3$16,876 SGD
Retailer 6$16,901 SGD
Retailer 7$17,551 SGD
NZ Jewellers$23,557 SGD

44 data points across 9 retailers

8 retailers$12,129 SGD to $23,557 SGD

A
Cheapest Retailer
-
$12,129 SGD
B+
Retailer 2
-
$14,474 SGD
View
Retailer 3
-
$15,601 SGD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$16,642 SGD
View
A
Retailer 5
-
$16,876 SGD
View
B+
Retailer 6
-
$16,901 SGD
View
B+
Retailer 7
-
$17,551 SGD
View
Most Expensive
B
NZ Jewellers
bc6e3633-406c-408e-83f6-801bcb065360 · Nov 2
$23,557 SGD
$18,443 USD
View
7 more retailers have this diamond
Prices start from $12,129 SGDSave up to $11,428 SGD

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
3.18ct Round
$12,129 SGD