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Marquise|Natural|GIA

1.50ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 2546928400

Certificate GIA 2546928400

Diamond specifications and retailer prices

From $14,004 AUD
£7,728 GBP
As of October 28, 2026
8 retailers carry this diamond
Most expensive: $15,545 AUD at GemsNY · As of October 23, 2026
View at GemsNY

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded H 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 2546928400. Listed at 8 retailers as of October 28, 2026. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle39.06°
Pavilion angle38.73°
OriginNatural
Grading LabGIA
CertificateGIA 2546928400
Dimensions11.09 × 5.98 × 3.57 mm
L/W Ratio1.85
Top View
11.09 mm5.98 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2546928400
Side View
Table 60.0%Crown 39.06°Girdle: THK-VTKPavilion 38.73°Culet: NoneDepth 59.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: $15,545 AUD|Low: $8,322 AUD|High: $19,890 AUD|Avg: $13,152 AUD
GemsNY
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
Retailer 15
Retailer 16
Retailer 17
October 28, 2026
Retailer 9$8,322 AUD
Retailer 5$10,390 AUD
Retailer 7$10,796 AUD
Retailer 17$11,057 AUD
Retailer 4$11,297 AUD
Retailer 3$11,809 AUD
Retailer 13$12,231 AUD
Retailer 12$13,040 AUD
Retailer 8$13,174 AUD
Retailer 6$13,528 AUD
Retailer 16$13,540 AUD
Retailer 14$13,541 AUD
Retailer 2$14,004 AUD
Retailer 10$15,323 AUD
GemsNY$15,545 AUD
Retailer 11$17,041 AUD
Retailer 15$19,785 AUD

12 data points across 17 retailers

8 retailers

Retailer 1
-
$11,057 AUD
$7,749 USD
Price last confirmed 10 days ago
Retailer 2
-
$12,231 AUD
$8,572 USD
View
Price last confirmed 11 days ago
Retailer 3
-
$13,040 AUD
View
Price last confirmed 11 days ago
Retailer 4
-
$13,540 AUD
$9,489 USD
View
Price last confirmed 12 days ago
Retailer 5
-
$13,541 AUD
$9,490 USD
View
Price last confirmed 10 days ago
B
Retailer 6
-
$14,004 AUD
£7,728 GBP
View
Retailer 7
-
$14,760 AUD
$10,344 USD
View
Price last confirmed 57 days ago
Most Expensive
GemsNY
N691508 · Oct 23
$15,545 AUD
$10,894 USD
View
Price last confirmed 10 days ago
7 more retailers have this diamond
Prices start from $14,004 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
$14,004 AUD