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Cushion|Natural|GIA

1.50ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 1246005803

Certificate GIA 1246005803

Diamond specifications and retailer prices

From $3,456 USD
HK$27,000 HKD
As of October 29, 2026
Save $4,323 USD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,779 USD at MOH London · As of October 29, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1246005803. Listed at 19 retailers as of October 29, 2026, with prices from $3,456 to $7,779, a $4,323 spread on the same certified stone. MOH London lists it at $7,779. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1246005803
Dimensions6.86 × 6.28 × 4.32 mm
L/W Ratio1.09
Girdle conditionFaceted
Top View
6.86 mm6.28 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1246005803
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.8%

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: Oct 29
Current: $7,779 USD|Low: $3,456 USD|High: $8,042 USD|Avg: $4,709 USD|-3.3%
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
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 18$3,456 USD
Retailer 9$3,565 USD
Retailer 16$3,758 USD
Retailer 17$3,982 USD
Retailer 5$4,012 USD
Retailer 3$4,062 USD
Retailer 2$4,097 USD
Retailer 6$4,170 USD
Retailer 8$4,188 USD
Retailer 7$4,240 USD
Retailer 15$4,240 USD
Retailer 13$4,329 USD
Retailer 11$4,658 USD
Retailer 10$5,029 USD
Retailer 12$5,489 USD
Retailer 14$5,863 USD
Retailer 4$7,461 USD
MOH London$7,779 USD

24 data points across 18 retailers

19 retailers$3,456 USD to $7,779 USD

A
Cheapest Retailer
-
$3,456 USD
HK$27,000 HKD
A
Retailer 2
-
$3,565 USD
View
A
Retailer 3
-
$3,758 USD
View
A
Retailer 4
-
$3,982 USD
View
A
Retailer 5
-
$4,012 USD
View
A
Retailer 6
-
$4,062 USD
View
Final sale: no returns
A
Retailer 7
-
$4,097 USD
€3,902 EUR
View
A
Retailer 8
-
$4,170 USD
View
A
Retailer 9
-
$4,188 USD
View
A
Retailer 10
-
$4,240 USD
View
A
Retailer 11
-
$4,240 USD
View
A
Retailer 12
-
$4,329 USD
£3,409 GBP
View
A
Retailer 13
-
$4,658 USD
View
A
Retailer 14
-
$5,029 USD
A$7,738 AUD
View
Price last confirmed 19 days ago
A
Retailer 15
-
$5,264 USD
A$8,098 AUD
View
A
Retailer 16
-
$5,489 USD
€5,228 EUR
View
A
Retailer 17
-
$5,863 USD
ZAR 94,721 ZAR
View
Price last confirmed 7 days ago
B+
Retailer 18
-
$7,461 USD
View
Most Expensive
B+
MOH London
1FAD8C3DB · Oct 29
$7,779 USD
£6,125 GBP
View
18 more retailers have this diamond
Prices start from $3,456 USDSave up to $4,323 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
$3,456 USD