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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 €2,682 EUR
HK$23,500 HKD
As of November 2, 2026
Save €3,096 EUR (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €5,778 EUR at MOH London · As of November 2, 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 2, 2026, with prices from €2,682 to €5,778, a €3,096 spread on the same certified stone. MOH London lists it at €5,778. 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
Colour
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 2
Current: €5,778 EUR|Low: €2,636 EUR|High: €5,778 EUR|Avg: €3,472 EUR|+0.3%
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
Retailer 19
November 2, 2026
Retailer 14€2,682 EUR
Retailer 4€2,688 EUR
Retailer 3€2,830 EUR
Retailer 6€2,870 EUR
Retailer 18€2,889 EUR
Retailer 10€2,991 EUR
Retailer 9€3,050 EUR
Retailer 2€3,081 EUR
Retailer 17€3,228 EUR
Retailer 15€3,279 EUR
Retailer 12€3,281 EUR
Retailer 11€3,389 EUR
Retailer 7€3,463 EUR
Retailer 19€3,534 EUR
Retailer 13€3,549 EUR
Retailer 16€4,044 EUR
Retailer 5€4,212 EUR
Retailer 8€5,561 EUR
MOH London€5,778 EUR

19 data points across 19 retailers

22 retailers€2,682 EUR to €5,778 EUR

A
Cheapest Retailer
-
€2,682 EUR
HK$23,500 HKD
A
Retailer 2
-
€2,688 EUR
$3,015 USD
View
A
Retailer 3
-
€2,830 EUR
$3,174 USD
View
A
Retailer 4
-
€2,870 EUR
$3,219 USD
View
A
Retailer 5
-
€2,889 EUR
$3,240 USD
View
Final sale: no returns
A
Retailer 6
-
€2,991 EUR
$3,355 USD
View
A
Retailer 7
-
€3,050 EUR
$3,421 USD
View
A
Retailer 8
-
€3,081 EUR
View
A
Retailer 9
-
€3,228 EUR
$3,620 USD
View
A
Retailer 10
-
€3,279 EUR
£2,895 GBP
View
A
Retailer 11
-
€3,281 EUR
$3,680 USD
View
A
Retailer 12
-
€3,389 EUR
SGD 5,136 SGD
View
Retailer 13
-
€3,463 EUR
$3,884 USD
View
Price last confirmed 13 days ago
Retailer 14
-
€3,521 EUR
$3,949 USD
View
Price last confirmed 12 days ago
A
Retailer 15
-
€3,534 EUR
£3,121 GBP
View
A
Retailer 16
-
€3,549 EUR
$3,981 USD
View
A
Retailer 17
-
€3,714 EUR
A$6,408 AUD
View
Retailer 18
-
€3,763 EUR
A$6,493 AUD
View
Price last confirmed 25 days ago
B+
Retailer 19
-
€4,044 EUR
View
B+
Retailer 20
-
€4,212 EUR
ZAR 76,327 ZAR
View
Retailer 21
-
€5,561 EUR
$6,237 USD
View
Price last confirmed 10 days ago
Most Expensive
B+
MOH London
8B8AE58D9 · Nov 2
€5,778 EUR
£5,103 GBP
View
21 more retailers have this diamond
Prices start from €2,682 EURSave up to €3,096 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
€2,682 EUR