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Marquise|Natural|GIA

1.50ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 5543731644

Certificate GIA 5543731644

Diamond specifications and retailer prices

From $13,181 AUD
As of October 29, 2026
Save $8,532 AUD (39%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $21,713 AUD at MOH London · As of October 29, 2026
View at MOH London

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 5543731644. Listed at 14 retailers as of October 29, 2026, with prices from $13,181 to $21,713, a $8,532 spread on the same certified stone. MOH London lists it at $21,713. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.94°
Pavilion angle40.7°
OriginNatural
Grading LabGIA
CertificateGIA 5543731644
Dimensions10.81 × 5.83 × 3.80 mm
L/W Ratio1.85
Top View
10.81 mm5.83 mm1.50 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543731644
Side View
Table 61.0%Crown 40.94°Girdle: THN-VTKPavilion 40.7°Culet: NoneDepth 65.2%

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: Oct 29
Current: $21,713 AUD|Low: $14,474 AUD|High: $23,425 AUD|Avg: $17,767 AUD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 9$14,474 AUD
Retailer 2$15,248 AUD
Retailer 8$15,472 AUD
Retailer 12$15,515 AUD
Retailer 5$15,672 AUD
Retailer 7$16,552 AUD
Retailer 3$16,807 AUD
Retailer 10$17,066 AUD
Retailer 6$17,682 AUD
Retailer 11$20,265 AUD
MOH London$21,713 AUD
Retailer 4$23,425 AUD

30 data points across 12 retailers

14 retailers$13,181 AUD to $21,713 AUD

B+
Cheapest Retailer
-
$13,181 AUD
Retailer 2
-
$14,222 AUD
$9,967 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
$14,474 AUD
$10,144 USD
View
B+
Retailer 4
-
$15,248 AUD
£8,414 GBP
View
Retailer 5
-
$15,472 AUD
View
Price last confirmed 9 days ago
B
Retailer 6
-
$15,672 AUD
£8,648 GBP
View
B
Retailer 7
-
$16,552 AUD
$11,600 USD
View
Retailer 8
-
$16,807 AUD
$11,779 USD
View
Price last confirmed 32 days ago
Retailer 9
-
$17,066 AUD
$11,960 USD
View
Price last confirmed 32 days ago
B
Retailer 10
-
$17,206 AUD
$12,058 USD
View
B
Retailer 11
-
$17,682 AUD
€11,802 EUR
View
Retailer 12
-
$19,393 AUD
$13,591 USD
View
Price last confirmed 34 days ago
Retailer 13
-
$20,265 AUD
ZAR 229,437 ZAR
View
Price last confirmed 32 days ago
Most Expensive
B
MOH London
50F80338C · Oct 29
$21,713 AUD
£11,982 GBP
View
13 more retailers have this diamond
Prices start from $13,181 AUDSave up to $8,532 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 Marquise
$13,181 AUD