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Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 5543750463

Certificate GIA 5543750463

Diamond specifications and retailer prices

From $8,517 NZD
HK$37,500 HKD
As of November 1, 2026
Save $9,082 NZD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $17,599 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5543750463. Listed at 19 retailers as of October 28, 2026, with prices from $8,517 to $17,599, a $9,082 spread on the same certified stone. Queensmith lists it at $17,599. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543750463
Dimensions7.38 × 5.80 × 3.97 mm
L/W Ratio1.27
Top View
7.38 mm5.80 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543750463
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.5%

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 1
Current: $17,599 NZD|Low: $8,449 NZD|High: $17,734 NZD|Avg: $11,851 NZD|+1.8%
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
Retailer 14
November 2, 2026
Retailer 12$8,517 NZD
Retailer 9$9,100 NZD
Retailer 13$9,510 NZD
Retailer 5$10,032 NZD
Retailer 3$10,367 NZD
Retailer 2$10,509 NZD
Retailer 8$10,775 NZD
Retailer 6$11,181 NZD
Retailer 4$11,512 NZD
Retailer 14$11,735 NZD
Retailer 7$12,268 NZD
Retailer 11$13,801 NZD
Retailer 10$16,549 NZD
Queensmith$17,599 NZD

24 data points across 14 retailers

19 retailers$8,517 NZD to $17,599 NZD

A
Cheapest Retailer
-
$8,517 NZD
HK$37,500 HKD
A
Retailer 2
-
$9,100 NZD
₹488,481 INR
View
A
Retailer 3
-
$9,510 NZD
$5,360 USD
View
Retailer 4
-
$9,776 NZD
SGD 7,446 SGD
View
Price last confirmed 19 days ago
A
Retailer 5
-
$10,032 NZD
SGD 7,641 SGD
View
A
Retailer 6
-
$10,367 NZD
$5,843 USD
View
Final sale: no returns
A
Retailer 7
-
$10,431 NZD
$5,879 USD
View
A
Retailer 8
-
$10,433 NZD
$5,880 USD
View
A
Retailer 9
-
$10,509 NZD
£4,664 GBP
View
A
Retailer 10
-
$10,775 NZD
£4,782 GBP
View
Retailer 11
-
$11,181 NZD
A$9,695 AUD
View
Price last confirmed 22 days ago
Retailer 12
-
$11,311 NZD
$6,375 USD
View
Price last confirmed 17 days ago
B+
Retailer 13
-
$11,512 NZD
$6,488 USD
View
B+
Retailer 14
-
$11,542 NZD
A$10,008 AUD
View
B+
Retailer 15
-
$11,735 NZD
$6,614 USD
View
B+
Retailer 16
-
$12,268 NZD
€6,585 EUR
View
B+
Retailer 17
-
$13,801 NZD
ZAR 125,655 ZAR
View
B+
Retailer 18
-
$16,549 NZD
£7,344 GBP
View
Most Expensive
B
Queensmith
5543750463 · Oct 28
$17,599 NZD
£7,810 GBP
View
18 more retailers have this diamond
Prices start from $8,517 NZDSave up to $9,082 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
$8,517 NZD