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Marquise|Natural|GIA

1.50ct G SI1 Marquise Natural Diamond

GD • G/SI1 • GIA 6552564290

Certificate GIA 6552564290

Diamond specifications and retailer prices

From $11,507 AUD
HK$63,000 HKD
As of November 1, 2026
Save $9,302 AUD (45%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $20,808 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552564290. Listed at 16 retailers as of October 30, 2026, with prices from $11,507 to $20,808, a $9,302 spread on the same certified stone. NZ Jewellers lists it at $20,808. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552564290
Dimensions11.90 × 5.96 × 3.36 mm
L/W Ratio2.00
Culet sizeNone
Key to symbols
Feather, Crystal, Cavity, Pinpoint
Top View
11.90 mm5.96 mm1.50 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552564290
Side View
Table 59.0%CrownGirdle: STK-XTKPavilionCulet: NoneDepth 56.4%

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: $20,808 AUD|Low: $11,454 AUD|High: $20,866 AUD|Avg: $14,745 AUD|-0.3%
NZ Jewellers
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 14$11,507 AUD
Retailer 9$11,812 AUD
Retailer 6$12,762 AUD
Retailer 5$13,431 AUD
Retailer 13$13,715 AUD
Retailer 4$13,781 AUD
Retailer 8$14,067 AUD
Retailer 10$14,930 AUD
Retailer 2$15,159 AUD
Retailer 3$15,301 AUD
Retailer 7$17,227 AUD
Retailer 12$17,230 AUD
Retailer 11$19,602 AUD
NZ Jewellers$20,808 AUD

31 data points across 14 retailers

16 retailers$11,507 AUD to $20,808 AUD

A
Cheapest Retailer
-
$11,507 AUD
HK$63,000 HKD
B+
Retailer 2
-
$11,812 AUD
₹788,369 INR
View
B+
Retailer 3
-
$12,167 AUD
View
Retailer 4
-
$12,762 AUD
SGD 12,086 SGD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$13,431 AUD
$9,413 USD
View
Retailer 6
-
$13,715 AUD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$13,781 AUD
$9,658 USD
View
Final sale: no returns
B+
Retailer 8
-
$14,067 AUD
£7,762 GBP
View
B
Retailer 9
-
$14,615 AUD
View
B
Retailer 10
-
$14,930 AUD
$10,463 USD
View
B
Retailer 11
-
$15,159 AUD
$10,624 USD
View
B
Retailer 12
-
$15,301 AUD
$10,723 USD
View
B
Retailer 13
-
$17,227 AUD
$12,073 USD
View
B
Retailer 14
-
$17,230 AUD
$12,075 USD
View
B
Retailer 15
-
$19,602 AUD
£10,817 GBP
View
Most Expensive
B
NZ Jewellers
caeb97ce-293e-45f9-b8f6-8923014d3234 · Oct 30
$20,808 AUD
$14,583 USD
View
15 more retailers have this diamond
Prices start from $11,507 AUDSave up to $9,302 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 Marquise
$11,507 AUD