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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 1555054425

Certificate GIA 1555054425

Diamond specifications and retailer prices

From $6,025 NZD
As of November 6, 2026
Save $6,951 NZD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $12,976 NZD at MOH London · As of November 1, 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 1555054425. Listed at 21 retailers as of November 1, 2026, with prices from $6,025 to $12,976, a $6,951 spread on the same certified stone. MOH London lists it at $12,976. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555054425
Dimensions7.45 × 5.73 × 4.17 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.45 mm5.73 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1555054425
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 72.8%

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 6
Current: $12,976 NZD|Low: $6,025 NZD|High: $13,324 NZD|Avg: $8,368 NZD|-2.6%
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 7, 2026
Retailer 18$6,025 NZD
Retailer 8$6,954 NZD
Retailer 17$6,985 NZD
Retailer 9$7,133 NZD
Retailer 10$7,133 NZD
Retailer 3$7,351 NZD
Retailer 19$7,360 NZD
Retailer 7$7,517 NZD
Retailer 13$7,526 NZD
Retailer 12$7,558 NZD
Retailer 15$7,674 NZD
Retailer 11$7,721 NZD
Retailer 6$8,031 NZD
Retailer 2$8,100 NZD
Retailer 5$8,742 NZD
Retailer 14$8,974 NZD
Retailer 16$9,730 NZD
Retailer 4$12,750 NZD
MOH London$12,976 NZD

20 data points across 19 retailers

21 retailers$6,025 NZD to $12,976 NZD

A
Cheapest Retailer
-
$6,025 NZD
B+
Retailer 2
-
$6,954 NZD
View
B+
Retailer 3
-
$6,985 NZD
View
Retailer 4
-
$7,133 NZD
View
Price last confirmed 9 days ago
Retailer 5
-
$7,133 NZD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$7,351 NZD
View
B+
Retailer 7
-
$7,360 NZD
View
Final sale: no returns
B+
Retailer 8
-
$7,517 NZD
View
B+
Retailer 9
-
$7,526 NZD
View
B+
Retailer 10
-
$7,558 NZD
View
B+
Retailer 11
-
$7,674 NZD
View
Retailer 12
-
$7,721 NZD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$8,031 NZD
View
B+
Retailer 14
-
$8,100 NZD
View
Retailer 15
-
$8,505 NZD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
$8,650 NZD
View
B+
Retailer 17
-
$8,742 NZD
View
B+
Retailer 18
-
$8,974 NZD
View
B
Retailer 19
-
$9,730 NZD
View
B
Retailer 20
-
$12,750 NZD
View
Most Expensive
B
MOH London
CE8DDD0F8 · Nov 1
$12,976 NZD
£5,664 GBP
View
20 more retailers have this diamond
Prices start from $6,025 NZDSave up to $6,951 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.

A
1.50ct Cushion
$6,025 NZD