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Cushion|Natural|GIA

1.50ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 6555192200

Certificate GIA 6555192200

Diamond specifications and retailer prices

From $4,621 AUD
HK$25,300 HKD
As of November 1, 2026
Save $7,131 AUD (61%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $11,752 AUD 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555192200. Listed at 15 retailers as of October 28, 2026, with prices from $4,621 to $11,752, a $7,131 spread on the same certified stone. Queensmith lists it at $11,752. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555192200
Dimensions7.29 × 5.59 × 3.91 mm
L/W Ratio1.30
Top View
7.29 mm5.59 mm1.50 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555192200
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.9%

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: $11,752 AUD|Low: $4,584 AUD|High: $11,833 AUD|Avg: $6,677 AUD|+2.3%
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 2, 2026
Retailer 10$4,621 AUD
Retailer 2$4,928 AUD
Retailer 5$5,396 AUD
Retailer 3$5,641 AUD
Retailer 6$5,759 AUD
Retailer 13$5,818 AUD
Retailer 11$6,111 AUD
Retailer 8$6,253 AUD
Retailer 4$6,324 AUD
Retailer 12$6,497 AUD
Retailer 7$6,914 AUD
Retailer 9$10,222 AUD
Queensmith$11,752 AUD

24 data points across 13 retailers

15 retailers$4,621 AUD to $11,752 AUD

A
Cheapest Retailer
-
$4,621 AUD
HK$25,300 HKD
A
Retailer 2
-
$4,928 AUD
₹328,935 INR
View
A
Retailer 3
-
$5,396 AUD
SGD 5,110 SGD
View
A
Retailer 4
-
$5,609 AUD
$3,931 USD
View
A
Retailer 5
-
$5,641 AUD
$3,953 USD
View
Final sale: no returns
A
Retailer 6
-
$5,759 AUD
£3,178 GBP
View
A
Retailer 7
-
$5,818 AUD
SGD 5,510 SGD
View
A
Retailer 8
-
$6,111 AUD
$4,283 USD
View
A
Retailer 9
-
$6,253 AUD
£3,450 GBP
View
A
Retailer 10
-
$6,324 AUD
$4,432 USD
View
A
Retailer 11
-
$6,481 AUD
View
A
Retailer 12
-
$6,497 AUD
$4,553 USD
View
A
Retailer 13
-
$6,914 AUD
€4,615 EUR
View
B
Retailer 14
-
$10,222 AUD
£5,641 GBP
View
Most Expensive
B
Queensmith
6555192200 · Oct 28
$11,752 AUD
£6,485 GBP
View
14 more retailers have this diamond
Prices start from $4,621 AUDSave up to $7,131 AUD

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
$4,621 AUD