CaratHunter
Plans
Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6551442183

Certificate GIA 6551442183

Diamond specifications and retailer prices

From €2,431 EUR
HK$21,300 HKD
As of November 2, 2026
Save €2,966 EUR (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €5,397 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 6551442183. Listed at 21 retailers as of November 2, 2026, with prices from €2,431 to €5,397, a €2,966 spread on the same certified stone. MOH London lists it at €5,397. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551442183
Dimensions7.24 × 5.79 × 3.98 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
7.24 mm5.79 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551442183
Side View
Table 69.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.8%

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 2
Current: €5,397 EUR|Low: €2,385 EUR|High: €5,744 EUR|Avg: €3,511 EUR|-6.1%
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€2,431 EUR
Retailer 4€2,605 EUR
Retailer 8€2,694 EUR
Retailer 6€2,697 EUR
Retailer 19€2,698 EUR
Retailer 2€2,820 EUR
Retailer 10€2,884 EUR
Retailer 18€2,941 EUR
Retailer 12€2,957 EUR
Retailer 15€3,062 EUR
Retailer 13€3,085 EUR
Retailer 3€3,110 EUR
Retailer 11€3,138 EUR
Retailer 17€3,776 EUR
Retailer 5€4,072 EUR
Retailer 7€4,204 EUR
Retailer 16€4,556 EUR
Retailer 9€5,231 EUR
MOH London€5,397 EUR

18 data points across 19 retailers

21 retailers€2,431 EUR to €5,397 EUR

A
Cheapest Retailer
-
€2,431 EUR
HK$21,300 HKD
A
Retailer 2
-
€2,605 EUR
$2,922 USD
View
A
Retailer 3
-
€2,694 EUR
$3,022 USD
View
A
Retailer 4
-
€2,697 EUR
$3,025 USD
View
A
Retailer 5
-
€2,698 EUR
$3,026 USD
View
Final sale: no returns
A
Retailer 6
-
€2,820 EUR
View
A
Retailer 7
-
€2,884 EUR
$3,235 USD
View
A
Retailer 8
-
€2,941 EUR
$3,299 USD
View
A
Retailer 9
-
€2,957 EUR
$3,317 USD
View
A
Retailer 10
-
€3,062 EUR
£2,704 GBP
View
A
Retailer 11
-
€3,085 EUR
$3,460 USD
View
A
Retailer 12
-
€3,110 EUR
£2,747 GBP
View
Retailer 13
-
€3,138 EUR
$3,520 USD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
€3,522 EUR
A$6,078 AUD
View
A
Retailer 15
-
€3,776 EUR
View
Retailer 16
-
€3,793 EUR
A$6,545 AUD
View
Price last confirmed 25 days ago
B+
Retailer 17
-
€4,072 EUR
ZAR 73,781 ZAR
View
B+
Retailer 18
-
€4,204 EUR
$4,715 USD
View
B+
Retailer 19
-
€4,556 EUR
$5,110 USD
View
Retailer 20
-
€5,231 EUR
$5,867 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
20437D1FD · Nov 2
€5,397 EUR
£4,766 GBP
View
20 more retailers have this diamond
Prices start from €2,431 EURSave up to €2,966 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
€2,431 EUR