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 $7,505 USD
As of November 2, 2026
Save $5,723 USD (43%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $13,228 USD 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2458259458. Listed at 22 retailers as of November 2, 2026, with prices from $7,505 to $13,228, a $5,723 spread on the same certified stone. MOH London lists it at $13,228. 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

How it works →
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: Nov 2
Current: $13,228 USD|Low: $7,059 USD|High: $13,388 USD|Avg: $9,620 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9$7,505 USD
Retailer 6$7,550 USD
Retailer 7$8,470 USD
Retailer 8$8,470 USD
Retailer 3$9,257 USD
Retailer 5$9,299 USD
Retailer 2$10,523 USD
Retailer 4$12,444 USD
MOH London$13,228 USD

43 data points across 9 retailers

22 retailers$7,505 USD to $13,228 USD

B
Cheapest Retailer
-
$7,505 USD
Retailer 2
-
$7,550 USD
View
Price last confirmed 15 days ago
B
Retailer 3
-
$7,887 USD
View
B
Retailer 4
-
$7,919 USD
A$12,183 AUD
View
B
Retailer 5
-
$7,931 USD
View
B
Retailer 6
-
$8,165 USD
View
B
Retailer 7
-
$8,264 USD
CA$11,477 CAD
View
B
Retailer 8
-
$8,420 USD
View
B
Retailer 9
-
$8,470 USD
View
B
Retailer 10
-
$8,470 USD
View
Final sale: no returns
B
Retailer 11
-
$8,541 USD
View
B
Retailer 12
-
$9,257 USD
£7,289 GBP
View
Retailer 13
-
$9,299 USD
A$14,307 AUD
View
Price last confirmed 10 days ago
B
Retailer 14
-
$9,444 USD
View
C
Retailer 15
-
$9,744 USD
View
C
Retailer 16
-
$10,020 USD
View
C
Retailer 17
-
$10,020 USD
View
C
Retailer 18
-
$10,350 USD
View
B
Retailer 19
-
$10,523 USD
€10,022 EUR
View
Retailer 20
-
$11,151 USD
View
Price last confirmed 10 days ago
C
Retailer 21
-
$12,444 USD
ZAR 201,028 ZAR
View
Most Expensive
C
MOH London
D404E7B54 · Nov 2
$13,228 USD
£10,416 GBP
View
21 more retailers have this diamond
Prices start from $7,505 USDSave up to $5,723 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.

B
1.50ct Cushion
$7,505 USD