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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6551442183

Certificate GIA 6551442183

Diamond specifications and retailer prices

From $4,837 NZD
HK$21,300 HKD
As of November 2, 2026
Save $5,713 NZD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $10,550 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551442183. Listed at 21 retailers as of November 1, 2026, with prices from $4,837 to $10,550, a $5,713 spread on the same certified stone. MOH London lists it at $10,550. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551442183
Dimensions7.24 × 5.79 × 3.98 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
7.24 mm5.79 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551442183
Side View
Table 69.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.8%

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 2
Current: $10,550 NZD|Low: $4,747 NZD|High: $11,431 NZD|Avg: $6,890 NZD|-7.7%
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 2, 2026
Retailer 2$4,837 NZD
Retailer 18$5,185 NZD
Retailer 8$5,362 NZD
Retailer 6$5,367 NZD
Retailer 16$5,369 NZD
Retailer 3$5,529 NZD
Retailer 10$5,740 NZD
Retailer 15$5,853 NZD
Retailer 19$6,050 NZD
Retailer 12$6,093 NZD
Retailer 4$6,112 NZD
Retailer 17$6,190 NZD
Retailer 11$6,246 NZD
Retailer 14$7,515 NZD
Retailer 5$8,103 NZD
Retailer 7$8,366 NZD
Retailer 13$9,067 NZD
Retailer 9$10,411 NZD
MOH London$10,550 NZD

19 data points across 19 retailers

21 retailers$4,837 NZD to $10,550 NZD

A
Cheapest Retailer
-
$4,837 NZD
HK$21,300 HKD
A
Retailer 2
-
$5,185 NZD
$2,922 USD
View
A
Retailer 3
-
$5,362 NZD
$3,022 USD
View
A
Retailer 4
-
$5,367 NZD
$3,025 USD
View
A
Retailer 5
-
$5,369 NZD
$3,026 USD
View
Final sale: no returns
A
Retailer 6
-
$5,529 NZD
€2,968 EUR
View
A
Retailer 7
-
$5,740 NZD
$3,235 USD
View
A
Retailer 8
-
$5,853 NZD
$3,299 USD
View
A
Retailer 9
-
$6,050 NZD
$3,410 USD
View
A
Retailer 10
-
$6,093 NZD
£2,704 GBP
View
A
Retailer 11
-
$6,112 NZD
$3,445 USD
View
A
Retailer 12
-
$6,190 NZD
£2,747 GBP
View
Retailer 13
-
$6,246 NZD
$3,520 USD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$7,010 NZD
A$6,078 AUD
View
A
Retailer 15
-
$7,515 NZD
€4,034 EUR
View
Retailer 16
-
$7,549 NZD
A$6,545 AUD
View
Price last confirmed 24 days ago
B+
Retailer 17
-
$8,103 NZD
ZAR 73,781 ZAR
View
B+
Retailer 18
-
$8,366 NZD
$4,715 USD
View
B+
Retailer 19
-
$9,067 NZD
$5,110 USD
View
Retailer 20
-
$10,411 NZD
$5,867 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
20437D1FD · Nov 1
$10,550 NZD
£4,682 GBP
View
20 more retailers have this diamond
Prices start from $4,837 NZDSave up to $5,713 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
$4,837 NZD