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Marquise|Natural|GIA

1.50ct L SI1 Marquise Natural Diamond

EX • L/SI1 • GIA 2557042589

Certificate GIA 2557042589

Diamond specifications and retailer prices

From $5,629 AUD
As of November 6, 2026
5 retailers carry this diamond
Most expensive: $7,614 AUD at Wholesale Diamonds Direct · As of October 21, 2026
View at Wholesale Diamonds Direct

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557042589. Listed at 5 retailers as of November 6, 2026. 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
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.37°
Pavilion angle28.37°
OriginNatural
Grading LabGIA
CertificateGIA 2557042589
Dimensions11.47 × 5.76 × 3.35 mm
L/W Ratio1.99
Top View
11.47 mm5.76 mm1.50 ctL / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557042589
Side View
Table 60.0%Crown 33.37°Girdle: MED-ETKPavilion 28.37°Culet: NoneDepth 58.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $5,593 AUD|Low: $4,541 AUD|High: $8,310 AUD|Avg: $5,876 AUD|-5.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Wholesale Diamonds Direct
October 23, 2026
Retailer 2$4,541 AUD
Retailer 3$4,879 AUD
Retailer 6$5,194 AUD
Retailer 5$5,515 AUD
Retailer 1$5,593 AUD
Retailer 4$5,845 AUD
Wholesale Diamonds Direct$7,614 AUD

31 data points across 7 retailers

5 retailers

Retailer 1
-
$4,541 AUD
Price last confirmed 16 days ago
Retailer 2
-
$4,879 AUD
View
Price last confirmed 16 days ago
Retailer 3
-
$5,194 AUD
View
Price last confirmed 17 days ago
B
Retailer 4
-
$5,629 AUD
View
Most Expensive
Wholesale Diamonds Direct
264705526 · Oct 21
$7,614 AUD
$5,231 USD
View
Price last confirmed 16 days ago
4 more retailers have this diamond
Prices start from $5,629 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
$5,629 AUD