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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6541605256

Certificate GIA 6541605256

Diamond specifications and retailer prices

From €2,647 EUR
HK$23,100 HKD
As of November 1, 2026
Save €3,060 EUR (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €5,707 EUR at MOH London · As of November 1, 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 I 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 6541605256. Listed at 22 retailers as of November 1, 2026, with prices from €2,647 to €5,707, a €3,060 spread on the same certified stone. MOH London lists it at €5,707. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle39°
OriginNatural
Grading LabGIA
CertificateGIA 6541605256
Dimensions6.78 × 6.57 × 4.38 mm
L/W Ratio1.03
Top View
6.78 mm6.57 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541605256
Side View
Table 66.0%CrownGirdle: THK-VTKPavilion 39°Culet: NoneDepth 66.7%

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 1
Current: €5,707 EUR|Low: €2,647 EUR|High: €5,871 EUR|Avg: €3,499 EUR|-2.8%
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
Retailer 19
November 2, 2026
Retailer 18€2,647 EUR
Retailer 17€2,699 EUR
Retailer 15€2,841 EUR
Retailer 6€2,881 EUR
Retailer 13€2,900 EUR
Retailer 10€3,003 EUR
Retailer 3€3,051 EUR
Retailer 9€3,062 EUR
Retailer 19€3,238 EUR
Retailer 12€3,240 EUR
Retailer 16€3,249 EUR
Retailer 11€3,402 EUR
Retailer 7€3,477 EUR
Retailer 5€3,535 EUR
Retailer 14€3,548 EUR
Retailer 2€4,060 EUR
Retailer 4€4,229 EUR
Retailer 8€5,583 EUR
MOH London€5,707 EUR

20 data points across 19 retailers

22 retailers€2,647 EUR to €5,707 EUR

A
Cheapest Retailer
-
€2,647 EUR
HK$23,100 HKD
A
Retailer 2
-
€2,699 EUR
$3,015 USD
View
A
Retailer 3
-
€2,841 EUR
$3,174 USD
View
A
Retailer 4
-
€2,881 EUR
$3,219 USD
View
A
Retailer 5
-
€2,900 EUR
$3,240 USD
View
Final sale: no returns
A
Retailer 6
-
€3,003 EUR
$3,355 USD
View
A
Retailer 7
-
€3,051 EUR
View
A
Retailer 8
-
€3,062 EUR
$3,421 USD
View
A
Retailer 9
-
€3,238 EUR
£2,848 GBP
View
A
Retailer 10
-
€3,240 EUR
$3,620 USD
View
A
Retailer 11
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€3,249 EUR
$3,630 USD
View
A
Retailer 12
-
€3,402 EUR
SGD 5,136 SGD
View
Retailer 13
-
€3,477 EUR
$3,884 USD
View
Price last confirmed 13 days ago
A
Retailer 14
-
€3,535 EUR
$3,949 USD
View
Retailer 15
-
€3,535 EUR
$3,949 USD
View
Price last confirmed 11 days ago
A
Retailer 16
-
€3,548 EUR
£3,121 GBP
View
A
Retailer 17
-
€3,728 EUR
A$6,408 AUD
View
Retailer 18
-
€3,778 EUR
A$6,493 AUD
View
Price last confirmed 24 days ago
A
Retailer 19
-
€4,060 EUR
View
B+
Retailer 20
-
€4,229 EUR
ZAR 76,327 ZAR
View
Retailer 21
-
€5,583 EUR
$6,237 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
8B8AE58D9 · Nov 1
€5,707 EUR
£5,020 GBP
View
21 more retailers have this diamond
Prices start from €2,647 EURSave up to €3,060 EUR

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
€2,647 EUR