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Round|Natural|GIA

1.40ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2558103659

Certificate GIA 2558103659

Diamond specifications and retailer prices

From $2,109 SGD
As of November 4, 2026
Save $3,887 SGD (65%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,238 SGD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.4ct natural round diamond

This 1.4ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2558103659. Listed at 14 retailers as of November 4, 2026, with a 184% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.40
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2558103659
Dimensions7.12 × 7.06 × 4.45 mm
L/W Ratio1.01
Top View
7.12 mm7.06 mm1.40 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2558103659
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $5,996 SGD|Low: $2,092 SGD|High: $6,238 SGD|Avg: $3,302 SGD|-3.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 10$2,109 SGD
Retailer 12$2,331 SGD
Retailer 8$2,648 SGD
Retailer 2$2,820 SGD
Retailer 3$2,880 SGD
Retailer 13$2,905 SGD
Retailer 11$2,984 SGD
Retailer 4$3,078 SGD
Retailer 7$3,151 SGD
Retailer 5$3,500 SGD
Retailer 6$3,500 SGD
Retailer 9$4,280 SGD
NZ Jewellers$5,996 SGD

39 data points across 13 retailers

14 retailers$2,109 SGD to $5,996 SGD

A
Cheapest Retailer
-
$2,109 SGD
Retailer 2
-
$2,331 SGD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$2,648 SGD
View
Final sale: no returns
B+
Retailer 4
-
$2,820 SGD
View
B+
Retailer 5
-
$2,880 SGD
View
B+
Retailer 6
-
$2,905 SGD
View
B+
Retailer 7
-
$2,970 SGD
View
B+
Retailer 8
-
$2,984 SGD
View
B+
Retailer 9
-
$3,078 SGD
View
B+
Retailer 10
-
$3,151 SGD
View
B
Retailer 11
-
$3,500 SGD
View
B
Retailer 12
-
$4,280 SGD
View
B
Retailer 13
-
$5,996 SGD
View
Most Expensive
NZ Jewellers
24342ae1-9916-4907-a630-cfa04c6aec93 · Sep 25
$6,238 SGD
$4,884 USD
View
Price last confirmed 41 days ago
13 more retailers have this diamond
Prices start from $2,109 SGDSave up to $3,887 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
1.40ct Round
$2,109 SGD