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1.40ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6495251546

Certificate GIA 6495251546

Diamond specifications and retailer prices

From $18,426 CAD
£10,367 GBP
As of October 29, 2026
2 retailers carry this diamond
Most expensive: $18,426 CAD at Diamond Quarter
View at Diamond Quarter

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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6495251546. Listed at 2 retailers as of October 29, 2026. 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
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6495251546
Dimensions7.18 × 7.21 × 4.43 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.18 mm7.21 mm1.40 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6495251546
Side View
Table 58.0%Crown 32.5°Girdle: THN-STKPavilion 41.6°Culet: NoneDepth 61.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $9,391 CAD|Low: $8,123 CAD|High: $13,960 CAD|Avg: $9,698 CAD|+1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
September 23, 2026
Retailer 6$8,123 CAD
Retailer 5$8,729 CAD
Retailer 2$8,890 CAD
Retailer 1$9,391 CAD
Retailer 4$11,282 CAD
Retailer 3$13,941 CAD

8 data points across 6 retailers

2 retailers

Retailer 1
-
$15,827 CAD
$11,308 USD
Price last confirmed 38 days ago
Most Expensive
B
Diamond Quarter
1.4SI2D6446DE78N · Oct 29
$18,426 CAD
£10,367 GBP
View
1 more retailer has this diamond

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
1.40ct Round
$18,426 CAD