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Marquise|Natural|GIA

1.50ct E SI2 Marquise Natural Diamond

VG • E/SI2 • GIA 6552340551

Certificate GIA 6552340551

Diamond specifications and retailer prices

From $11,178 AUD
$7,852 USD
As of October 31, 2026
13 retailers carry this diamond
Most expensive: $14,976 AUD at Zales · As of October 22, 2026
View at Zales

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552340551. Listed at 13 retailers as of October 31, 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
E
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle40.16°
Pavilion angle39.41°
OriginNatural
Grading LabGIA
CertificateGIA 6552340551
Dimensions10.97 × 5.91 × 3.85 mm
L/W Ratio1.86
Culet sizeNone
Top View
10.97 mm5.91 mm1.50 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6552340551
Side View
Table 59.0%Crown 40.16°Girdle: MED-THKPavilion 39.41°Culet: NoneDepth 65.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $12,306 AUD|Low: $7,215 AUD|High: $14,976 AUD|Avg: $10,647 AUD
Retailer 1
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
Retailer 18
Zales
October 22, 2026
Retailer 10$7,215 AUD
Retailer 13$8,776 AUD
Retailer 2$9,085 AUD
Retailer 4$9,179 AUD
Retailer 18$9,401 AUD
Retailer 6$9,508 AUD
Retailer 3$9,873 AUD
Retailer 15$9,947 AUD
Retailer 16$10,716 AUD
Retailer 5$11,106 AUD
Retailer 9$11,178 AUD
Retailer 17$11,986 AUD
Retailer 14$12,257 AUD
Retailer 1$12,306 AUD
Retailer 8$14,029 AUD
Retailer 12$14,148 AUD
Retailer 7$14,541 AUD
Retailer 11$14,976 AUD
Zales$14,976 AUD

27 data points across 19 retailers

13 retailers

Retailer 1
-
$8,776 AUD
$6,165 USD
Price last confirmed 13 days ago
Retailer 2
-
$9,085 AUD
$6,382 USD
View
Price last confirmed 12 days ago
Retailer 3
-
$9,401 AUD
SGD 8,924 SGD
View
Price last confirmed 19 days ago
Retailer 4
-
$9,508 AUD
$6,679 USD
View
Price last confirmed 25 days ago
Retailer 5
-
$9,947 AUD
$6,987 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$11,178 AUD
$7,852 USD
View
Retailer 7
-
$11,986 AUD
$8,419 USD
View
Price last confirmed 14 days ago
Retailer 8
-
$12,257 AUD
$8,610 USD
View
Price last confirmed 12 days ago
Retailer 9
-
$12,306 AUD
CA$12,006 CAD
View
Price last confirmed 8 days ago
Retailer 10
-
$14,148 AUD
$9,938 USD
View
Price last confirmed 9 days ago
Retailer 11
-
$14,541 AUD
$10,214 USD
View
Price last confirmed 37 days ago
Retailer 12
-
$14,976 AUD
$10,520 USD
View
Price last confirmed 9 days ago
Most Expensive
Zales
529588753 · Oct 22
$14,976 AUD
$10,520 USD
View
Price last confirmed 8 days ago
12 more retailers have this diamond
Prices start from $11,178 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
$11,178 AUD