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Marquise|Natural|GIA

1.50ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 7552026425

Certificate GIA 7552026425

Diamond specifications and retailer prices

From $13,173 AUD
$9,253 USD
As of October 28, 2026
Save $10,489 AUD (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $23,662 AUD at NZ Jewellers · As of October 27, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7552026425. Listed at 17 retailers as of October 27, 2026, with prices from $13,173 to $23,662, a $10,489 spread on the same certified stone. NZ Jewellers lists it at $23,662. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7552026425
Dimensions11.63 × 5.91 × 3.56 mm
L/W Ratio1.97
Key to symbols
Feather
Top View
11.63 mm5.91 mm1.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7552026425
Side View
Table 53.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 60.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $23,662 AUD|Low: $13,093 AUD|High: $23,662 AUD|Avg: $17,155 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
Retailer 15
October 29, 2026
Retailer 11$13,173 AUD
Retailer 3$13,279 AUD
Retailer 15$14,196 AUD
Retailer 12$14,314 AUD
Retailer 5$15,379 AUD
Retailer 2$15,549 AUD
Retailer 13$15,617 AUD
Retailer 14$15,768 AUD
Retailer 8$16,089 AUD
Retailer 4$17,745 AUD
Retailer 10$17,861 AUD
Retailer 6$18,679 AUD
Retailer 7$20,392 AUD
Retailer 9$22,290 AUD
NZ Jewellers$23,662 AUD

37 data points across 15 retailers

17 retailers$13,173 AUD to $23,662 AUD

A
Cheapest Retailer
-
$13,173 AUD
$9,253 USD
A
Retailer 2
-
$13,279 AUD
$9,328 USD
View
B+
Retailer 3
-
$14,196 AUD
$9,972 USD
View
B+
Retailer 4
-
$14,314 AUD
$10,055 USD
View
B+
Retailer 5
-
$15,379 AUD
$10,803 USD
View
B+
Retailer 6
-
$15,549 AUD
£8,600 GBP
View
B+
Retailer 7
-
$15,617 AUD
$10,970 USD
View
B+
Retailer 8
-
$15,768 AUD
$11,076 USD
View
B+
Retailer 9
-
$16,089 AUD
£8,899 GBP
View
B+
Retailer 10
-
$16,642 AUD
$11,690 USD
View
B+
Retailer 11
-
$16,642 AUD
$11,690 USD
View
B+
Retailer 12
-
$17,197 AUD
$12,080 USD
View
B
Retailer 13
-
$17,745 AUD
$12,465 USD
View
B
Retailer 14
-
$17,861 AUD
€11,949 EUR
View
Retailer 15
-
$18,679 AUD
$13,121 USD
View
Price last confirmed 8 days ago
B
Retailer 16
-
$22,290 AUD
£12,329 GBP
View
Most Expensive
B
NZ Jewellers
361bbd9a-62ab-4861-83d0-be2e971d2784 · Oct 27
$23,662 AUD
$16,621 USD
View
16 more retailers have this diamond
Prices start from $13,173 AUDSave up to $10,489 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
$13,173 AUD