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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 $9,598 SGD
$7,505 USD
As of November 2, 2026
Save $7,411 SGD (44%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $17,009 SGD 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 $9,598 to $17,009, a $7,411 spread on the same certified stone. MOH London lists it at $17,009. 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
Colour
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: $17,009 SGD|Low: $9,028 SGD|High: $17,122 SGD|Avg: $12,302 SGD|+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$9,598 SGD
Retailer 6$9,656 SGD
Retailer 7$10,832 SGD
Retailer 8$10,832 SGD
Retailer 3$11,839 SGD
Retailer 5$11,893 SGD
Retailer 2$13,458 SGD
Retailer 4$15,914 SGD
MOH London$17,009 SGD

44 data points across 9 retailers

22 retailers$9,598 SGD to $17,009 SGD

B
Cheapest Retailer
-
$9,598 SGD
$7,505 USD
Retailer 2
-
$9,656 SGD
$7,550 USD
View
Price last confirmed 14 days ago
B
Retailer 3
-
$10,087 SGD
$7,887 USD
View
B
Retailer 4
-
$10,128 SGD
A$12,183 AUD
View
B
Retailer 5
-
$10,143 SGD
$7,931 USD
View
B
Retailer 6
-
$10,442 SGD
$8,165 USD
View
B
Retailer 7
-
$10,568 SGD
CA$11,477 CAD
View
B
Retailer 8
-
$10,768 SGD
$8,420 USD
View
B
Retailer 9
-
$10,832 SGD
$8,470 USD
View
B
Retailer 10
-
$10,832 SGD
$8,470 USD
View
Final sale: no returns
B
Retailer 11
-
$10,923 SGD
$8,541 USD
View
B
Retailer 12
-
$11,839 SGD
£7,289 GBP
View
Retailer 13
-
$11,893 SGD
A$14,307 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$12,078 SGD
$9,444 USD
View
C
Retailer 15
-
$12,462 SGD
$9,744 USD
View
C
Retailer 16
-
$12,815 SGD
$10,020 USD
View
C
Retailer 17
-
$12,815 SGD
$10,020 USD
View
C
Retailer 18
-
$13,237 SGD
$10,350 USD
View
B
Retailer 19
-
$13,458 SGD
€10,022 EUR
View
Retailer 20
-
$14,261 SGD
$11,151 USD
View
Price last confirmed 10 days ago
C
Retailer 21
-
$15,914 SGD
ZAR 201,028 ZAR
View
Most Expensive
C
MOH London
D404E7B54 · Oct 29
$17,009 SGD
£10,472 GBP
View
21 more retailers have this diamond
Prices start from $9,598 SGDSave up to $7,411 SGD

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
$9,598 SGD