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Cushion|Natural|GIA

1.50ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 2354860997

Certificate GIA 2354860997

Diamond specifications and retailer prices

From $10,729 AUD
$7,519 USD
As of November 2, 2026
Save $8,185 AUD (43%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $18,914 AUD 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 G 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 2354860997. Listed at 20 retailers as of November 1, 2026, with prices from $10,729 to $18,914, a $8,185 spread on the same certified stone. MOH London lists it at $18,914. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2354860997
Dimensions6.89 × 6.57 × 4.47 mm
L/W Ratio1.05
Top View
6.89 mm6.57 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2354860997
Side View
Table 75.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $18,914 AUD|Low: $10,091 AUD|High: $19,142 AUD|Avg: $13,898 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9$10,729 AUD
Retailer 6$10,794 AUD
Retailer 7$12,110 AUD
Retailer 3$13,235 AUD
Retailer 5$13,296 AUD
Retailer 8$13,501 AUD
Retailer 2$15,045 AUD
Retailer 4$17,791 AUD
MOH London$18,914 AUD

45 data points across 9 retailers

20 retailers$10,729 AUD to $18,914 AUD

B+
Cheapest Retailer
-
$10,729 AUD
$7,519 USD
B+
Retailer 2
-
$10,794 AUD
$7,565 USD
View
B+
Retailer 3
-
$11,277 AUD
$7,903 USD
View
B
Retailer 4
-
$11,338 AUD
$7,946 USD
View
B
Retailer 5
-
$11,674 AUD
$8,181 USD
View
B
Retailer 6
-
$11,816 AUD
CA$11,501 CAD
View
B
Retailer 7
-
$12,036 AUD
$8,435 USD
View
B
Retailer 8
-
$12,110 AUD
$8,487 USD
View
Final sale: no returns
B
Retailer 9
-
$12,321 AUD
$8,635 USD
View
B
Retailer 10
-
$13,235 AUD
£7,304 GBP
View
Retailer 11
-
$13,296 AUD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$13,501 AUD
$9,462 USD
View
B
Retailer 13
-
$13,932 AUD
$9,764 USD
View
B
Retailer 14
-
$14,326 AUD
$10,040 USD
View
B
Retailer 15
-
$14,326 AUD
$10,040 USD
View
B
Retailer 16
-
$14,797 AUD
$10,370 USD
View
B
Retailer 17
-
$15,045 AUD
€10,042 EUR
View
Retailer 18
-
$15,940 AUD
$11,171 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
$17,791 AUD
ZAR 201,423 ZAR
View
Most Expensive
B
MOH London
EC7D83A1C · Nov 1
$18,914 AUD
£10,437 GBP
View
19 more retailers have this diamond
Prices start from $10,729 AUDSave up to $8,185 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.

B+
1.50ct Cushion
$10,729 AUD