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Cushion|Natural|GIA

1.50ct G SI2 Cushion Natural Diamond

EX • G/SI2 • GIA 6522429378

Certificate GIA 6522429378

Diamond specifications and retailer prices

From $5,195 NZD
As of November 6, 2026
Save $6,048 NZD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $14,055 NZD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6522429378. Listed at 15 retailers as of November 4, 2026, with a 116% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6522429378
Dimensions7.93 × 5.59 × 3.76 mm
L/W Ratio1.42
Top View
7.93 mm5.59 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6522429378
Side View
Table 67.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 67.3%

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: $14,055 NZD|Low: $5,148 NZD|High: $14,147 NZD|Avg: $7,708 NZD|+2.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 12$5,195 NZD
Retailer 2$5,515 NZD
Retailer 9$6,104 NZD
Retailer 4$6,222 NZD
Retailer 6$6,494 NZD
Retailer 8$6,545 NZD
Retailer 13$6,741 NZD
Retailer 10$6,981 NZD
Retailer 5$7,005 NZD
Retailer 3$7,214 NZD
Retailer 7$7,845 NZD
Retailer 11$11,244 NZD
Queensmith$14,055 NZD

25 data points across 13 retailers

15 retailers$5,195 NZD to $11,244 NZD

A
Cheapest Retailer
-
$5,195 NZD
A
Retailer 2
-
$5,515 NZD
View
A
Retailer 3
-
$6,104 NZD
View
A
Retailer 4
-
$6,222 NZD
View
Final sale: no returns
A
Retailer 5
-
$6,370 NZD
View
A
Retailer 6
-
$6,494 NZD
View
A
Retailer 7
-
$6,545 NZD
View
Retailer 8
-
$6,741 NZD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$6,981 NZD
View
A
Retailer 10
-
$7,005 NZD
View
A
Retailer 11
-
$7,068 NZD
View
A
Retailer 12
-
$7,214 NZD
View
A
Retailer 13
-
$7,845 NZD
View
B+
Retailer 14
-
$11,244 NZD
View
Most Expensive
Queensmith
6522429378 · Oct 28
$14,055 NZD
£6,135 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $5,195 NZDSave up to $6,048 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
$5,195 NZD