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Cushion|Natural|GIA

1.50ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 1553446315

Certificate GIA 1553446315

Diamond specifications and retailer prices

From $3,090 USD
As of November 6, 2026
Save $3,757 USD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,847 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553446315. Listed at 17 retailers as of November 4, 2026, with prices from $3,090 to $6,847, a $3,757 spread on the same certified stone. MOH London lists it at $6,847. 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

1.50
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553446315
Dimensions7.32 × 5.86 × 3.97 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
7.32 mm5.86 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553446315
Side View
Table 62.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 67.8%

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: Nov 6
Current: $6,847 USD|Low: $3,090 USD|High: $7,186 USD|Avg: $4,447 USD|-4.5%
MOH London
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
November 6, 2026
Retailer 2$3,090 USD
Retailer 6$3,263 USD
Retailer 12$3,505 USD
Retailer 15$3,505 USD
Retailer 3$3,611 USD
Retailer 8$3,846 USD
Retailer 13$3,910 USD
Retailer 10$4,133 USD
Retailer 4$4,252 USD
Retailer 14$4,351 USD
Retailer 9$4,513 USD
Retailer 5$4,520 USD
Retailer 7$4,528 USD
Retailer 11$5,010 USD
MOH London$6,847 USD

33 data points across 15 retailers

17 retailers$3,090 USD to $6,847 USD

A
Cheapest Retailer
-
$3,090 USD
A
Retailer 2
-
$3,263 USD
View
Final sale: no returns
A
Retailer 3
-
$3,505 USD
View
A
Retailer 4
-
$3,505 USD
View
A
Retailer 5
-
$3,611 USD
View
A
Retailer 6
-
$3,846 USD
View
A
Retailer 7
-
$3,910 USD
View
A
Retailer 8
-
$3,947 USD
View
A
Retailer 9
-
$4,133 USD
View
Retailer 10
-
$4,245 USD
View
Price last confirmed 22 days ago
A
Retailer 11
-
$4,252 USD
View
A
Retailer 12
-
$4,351 USD
View
A
Retailer 13
-
$4,513 USD
View
B+
Retailer 14
-
$4,520 USD
View
Retailer 15
-
$4,528 USD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
$5,010 USD
View
Most Expensive
B+
MOH London
490120D5A · Nov 4
$6,847 USD
£5,391 GBP
View
16 more retailers have this diamond
Prices start from $3,090 USDSave up to $3,757 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
1.50ct Cushion
$3,090 USD