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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 $13,316 NZD
$7,505 USD
As of November 2, 2026
Save $10,281 NZD (44%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $23,597 NZD 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 $13,316 to $23,597, a $10,281 spread on the same certified stone. MOH London lists it at $23,597. 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: $23,597 NZD|Low: $12,525 NZD|High: $23,755 NZD|Avg: $17,067 NZD|+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$13,316 NZD
Retailer 6$13,396 NZD
Retailer 7$15,028 NZD
Retailer 8$15,028 NZD
Retailer 3$16,425 NZD
Retailer 5$16,500 NZD
Retailer 2$18,671 NZD
Retailer 4$22,079 NZD
MOH London$23,597 NZD

44 data points across 9 retailers

22 retailers$13,316 NZD to $23,597 NZD

B
Cheapest Retailer
-
$13,316 NZD
$7,505 USD
Retailer 2
-
$13,396 NZD
$7,550 USD
View
Price last confirmed 14 days ago
B
Retailer 3
-
$13,994 NZD
$7,887 USD
View
B
Retailer 4
-
$14,051 NZD
A$12,183 AUD
View
B
Retailer 5
-
$14,072 NZD
$7,931 USD
View
B
Retailer 6
-
$14,487 NZD
$8,165 USD
View
B
Retailer 7
-
$14,662 NZD
CA$11,477 CAD
View
B
Retailer 8
-
$14,940 NZD
$8,420 USD
View
B
Retailer 9
-
$15,028 NZD
$8,470 USD
View
B
Retailer 10
-
$15,028 NZD
$8,470 USD
View
Final sale: no returns
B
Retailer 11
-
$15,154 NZD
$8,541 USD
View
B
Retailer 12
-
$16,425 NZD
£7,289 GBP
View
Retailer 13
-
$16,500 NZD
A$14,307 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$16,756 NZD
$9,444 USD
View
C
Retailer 15
-
$17,289 NZD
$9,744 USD
View
C
Retailer 16
-
$17,778 NZD
$10,020 USD
View
C
Retailer 17
-
$17,778 NZD
$10,020 USD
View
C
Retailer 18
-
$18,364 NZD
$10,350 USD
View
B
Retailer 19
-
$18,671 NZD
€10,022 EUR
View
Retailer 20
-
$19,785 NZD
$11,151 USD
View
Price last confirmed 10 days ago
C
Retailer 21
-
$22,079 NZD
ZAR 201,028 ZAR
View
Most Expensive
C
MOH London
D404E7B54 · Oct 29
$23,597 NZD
£10,472 GBP
View
21 more retailers have this diamond
Prices start from $13,316 NZDSave up to $10,281 NZD

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
$13,316 NZD