Cushion|Natural|GIA

1.40ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6451916211

Certificate GIA 6451916211

Diamond specifications and retailer prices

From $5,205 USD
As of November 4, 2026
Save $1,963 USD (27%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $9,705 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.4ct natural cushion diamond

This 1.4ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6451916211. Listed at 9 retailers as of November 3, 2026, with a 38% 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
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6451916211
Dimensions6.69 × 6.69 × 4.23 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.69 mm6.69 mm1.40 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6451916211
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $9,705 USD|Low: $5,220 USD|High: $9,822 USD|Avg: $6,593 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 4$5,220 USD
Retailer 8$5,244 USD
Retailer 6$5,555 USD
Retailer 5$5,968 USD
Retailer 2$6,256 USD
Retailer 3$7,168 USD
Retailer 7$7,262 USD
MOH London$9,705 USD

42 data points across 8 retailers

9 retailers$5,205 USD to $7,168 USD

B
Cheapest Retailer
-
$5,205 USD
B
Retailer 2
-
$5,220 USD
View
B
Retailer 3
-
$5,555 USD
View
B
Retailer 4
-
$5,887 USD
View
B
Retailer 5
-
$5,968 USD
View
B
Retailer 6
-
$6,256 USD
View
B
Retailer 7
-
$7,168 USD
View
Retailer 8
-
$7,262 USD
View
Price last confirmed 12 days ago
Most Expensive
MOH London
53ED16822 · Nov 2
$9,705 USD
£7,642 GBP
View
Price under review
8 more retailers have this diamond
Prices start from $5,205 USDSave up to $1,963 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.

B
1.40ct Cushion
$5,205 USD