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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 2458259458

Shape and cutting style on the report: Cushion modified brilliant

Certificate GIA 2458259458

Diamond specifications and retailer prices

From €6,718 EUR
$7,505 USD
As of October 31, 2026
Save €5,187 EUR (44%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €11,904 EUR 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2458259458. Listed at 22 retailers as of October 29, 2026, with prices from €6,718 to €11,904, a €5,187 spread on the same certified stone. MOH London lists it at €11,904. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
I
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2458259458
Dimensions7.42 × 6.03 × 4.12 mm
L/W Ratio1.23
Top View
7.42 mm6.03 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2458259458
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €11,904 EUR|Low: €6,318 EUR|High: €11,984 EUR|Avg: €8,610 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9€6,718 EUR
Retailer 6€6,758 EUR
Retailer 7€7,581 EUR
Retailer 8€7,581 EUR
Retailer 2€8,286 EUR
Retailer 5€8,324 EUR
Retailer 4€9,390 EUR
Retailer 3€11,138 EUR
MOH London€11,904 EUR

44 data points across 9 retailers

22 retailers€6,718 EUR to €11,904 EUR

B
Cheapest Retailer
-
€6,718 EUR
$7,505 USD
Retailer 2
-
€6,758 EUR
$7,550 USD
View
Price last confirmed 14 days ago
B
Retailer 3
-
€7,060 EUR
$7,887 USD
View
B
Retailer 4
-
€7,088 EUR
A$12,183 AUD
View
B
Retailer 5
-
€7,099 EUR
$7,931 USD
View
B
Retailer 6
-
€7,308 EUR
$8,165 USD
View
B
Retailer 7
-
€7,397 EUR
CA$11,477 CAD
View
B
Retailer 8
-
€7,537 EUR
$8,420 USD
View
B
Retailer 9
-
€7,581 EUR
$8,470 USD
View
B
Retailer 10
-
€7,581 EUR
$8,470 USD
View
Final sale: no returns
B
Retailer 11
-
€7,645 EUR
$8,541 USD
View
B
Retailer 12
-
€8,286 EUR
£7,289 GBP
View
Retailer 13
-
€8,324 EUR
A$14,307 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
€8,453 EUR
$9,444 USD
View
C
Retailer 15
-
€8,722 EUR
$9,744 USD
View
C
Retailer 16
-
€8,969 EUR
$10,020 USD
View
C
Retailer 17
-
€8,969 EUR
$10,020 USD
View
C
Retailer 18
-
€9,264 EUR
$10,350 USD
View
B
Retailer 19
-
€9,390 EUR
View
Retailer 20
-
€9,981 EUR
$11,151 USD
View
Price last confirmed 10 days ago
C
Retailer 21
-
€11,138 EUR
ZAR 201,028 ZAR
View
Most Expensive
C
MOH London
D404E7B54 · Oct 29
€11,904 EUR
£10,472 GBP
View
21 more retailers have this diamond
Prices start from €6,718 EURSave up to €5,187 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.

B
1.50ct Cushion
€6,718 EUR