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Round|Natural|GIA

1.40ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 7506436526

Certificate GIA 7506436526

Diamond specifications and retailer prices

From $4,161 USD
As of October 29, 2026
Save $7,486 USD (64%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $11,647 USD at Diamond Quarter · As of October 29, 2026
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 7506436526. Listed at 29 retailers as of October 29, 2026, with prices from $4,161 to $11,647, a $7,486 spread on the same certified stone. Diamond Quarter lists it at $11,647. 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
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7506436526
Dimensions7.15 × 7.12 × 4.48 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural
Top View
7.15 mm7.12 mm1.40 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7506436526
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.8%

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: Oct 29
Current: $5,286 USD|Low: $3,781 USD|High: $9,072 USD|Avg: $5,516 USD|-5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 14$4,161 USD
Retailer 17$4,170 USD
Retailer 2$4,202 USD
Retailer 5$4,321 USD
Retailer 16$4,322 USD
Retailer 15$4,375 USD
Retailer 4$4,574 USD
Retailer 12$5,041 USD
Retailer 10$5,081 USD
Retailer 6$5,177 USD
Retailer 11$5,273 USD
Retailer 1$5,286 USD
Retailer 7$5,550 USD
Retailer 9$5,550 USD
Retailer 18$5,740 USD
Retailer 19$5,980 USD
Retailer 3$5,994 USD
Retailer 8$7,922 USD
Retailer 13$8,760 USD

29 data points across 19 retailers

29 retailers$4,161 USD to $11,647 USD

A
Cheapest Retailer
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$4,161 USD
A
Retailer 2
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$4,170 USD
View
A
Retailer 3
-
$4,202 USD
View
A
Retailer 4
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$4,321 USD
View
A
Retailer 5
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$4,322 USD
View
A
Retailer 6
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$4,375 USD
View
A
Retailer 7
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$4,574 USD
View
Final sale: no returns
A
Retailer 8
-
$5,041 USD
View
A
Retailer 9
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$5,081 USD
View
A
Retailer 10
-
$5,177 USD
View
A
Retailer 11
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$5,203 USD
View
Price last confirmed 17 days ago
A
Retailer 12
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$5,203 USD
View
Price last confirmed 21 days ago
A
Retailer 13
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$5,203 USD
View
Price last confirmed 30 days ago
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Retailer 14
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$5,240 USD
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Price last confirmed 50 days ago
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Retailer 15
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$5,273 USD
View
A
Retailer 16
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$5,286 USD
£4,162 GBP
View
A
Retailer 17
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$5,550 USD
View
A
Retailer 18
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$5,550 USD
View
A
Retailer 19
-
$5,740 USD
View
B+
Retailer 20
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$5,840 USD
View
Price last confirmed 52 days ago
B+
Retailer 21
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$5,980 USD
€5,695 EUR
View
B+
Retailer 22
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$5,994 USD
£4,720 GBP
View
B+
Retailer 23
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$6,004 USD
View
Price last confirmed 20 days ago
B+
Retailer 24
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$7,922 USD
View
B
Retailer 25
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$8,760 USD
£6,898 GBP
View
B
Retailer 26
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$9,344 USD
View
Price last confirmed 58 days ago
B
Retailer 27
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$9,606 USD
View
Price last confirmed 26 days ago
B
Retailer 28
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$10,973 USD
£8,640 GBP
View
Most Expensive
B
Diamond Quarter
1.4SI2D7526DC67N · Oct 29
$11,647 USD
£9,171 GBP
View
28 more retailers have this diamond
Prices start from $4,161 USDSave up to $7,486 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
1.40ct Round
$4,161 USD