Marquise|Natural|GIA

1.50ct E SI2 Marquise Natural Diamond

GD • E/SI2 • GIA 7542512515

Certificate GIA 7542512515

Diamond specifications and retailer prices

From $16,720 AUD
$11,745 USD
As of October 28, 2026
Save $244 AUD (1%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $24,009 AUD at NZ Jewellers · As of October 21, 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 E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7542512515. Listed at 13 retailers as of October 28, 2026, with a relatively tight 1% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle32.83°
Pavilion angle38.05°
OriginNatural
Grading LabGIA
CertificateGIA 7542512515
Dimensions11.60 × 6.31 × 3.47 mm
L/W Ratio1.84
Girdle conditionVery Thick
Key to symbols
Feather, Crystal, Cavity, Indented Natural, Needle, Natural
Top View
11.60 mm6.31 mm1.50 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7542512515
Side View
Table 67.0%Crown 32.83°GirdlePavilion 38.05°Culet: NDepth 55.0%

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: $24,009 AUD|Low: $13,107 AUD|High: $24,009 AUD|Avg: $17,669 AUD
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
October 28, 2026
Retailer 4$13,107 AUD
Retailer 12$14,405 AUD
Retailer 6$15,366 AUD
Retailer 13$15,606 AUD
Retailer 11$15,846 AUD
Retailer 9$16,226 AUD
Retailer 7$16,720 AUD
Retailer 2$16,964 AUD
Retailer 14$18,007 AUD
Retailer 8$18,024 AUD
Retailer 3$18,954 AUD
Retailer 5$20,536 AUD
Retailer 10$22,620 AUD
NZ Jewellers$24,009 AUD

37 data points across 14 retailers

13 retailers$16,720 AUD to $16,964 AUD

Retailer 1
-
$13,366 AUD
$9,389 USD
Price last confirmed 7 days ago
Retailer 2
-
$14,405 AUD
$10,119 USD
View
Price last confirmed 15 days ago
Retailer 3
-
$15,366 AUD
$10,794 USD
View
Price last confirmed 13 days ago
Retailer 4
-
$15,606 AUD
$10,962 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$15,846 AUD
$11,131 USD
View
Price last confirmed 14 days ago
Retailer 6
-
$16,226 AUD
£8,975 GBP
View
Price last confirmed 9 days ago
B
Retailer 7
-
$16,720 AUD
$11,745 USD
View
B
Retailer 8
-
$16,964 AUD
£9,383 GBP
View
Retailer 9
-
$18,007 AUD
$12,649 USD
View
Price last confirmed 10 days ago
Retailer 10
-
$18,024 AUD
€12,058 EUR
View
Price last confirmed 8 days ago
Retailer 11
-
$18,954 AUD
$13,314 USD
View
Price last confirmed 8 days ago
Retailer 12
-
$22,620 AUD
£12,511 GBP
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
e69fd3b3-d4df-4205-9c15-106a113b538d · Oct 21
$24,009 AUD
$16,865 USD
View
Price last confirmed 10 days ago
12 more retailers have this diamond
Prices start from $16,720 AUDSave up to $244 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
$16,720 AUD