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Marquise|Natural|GIA

1.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 1565093496

Certificate GIA 1565093496

Diamond specifications and retailer prices

From $15,109 AUD
As of October 31, 2026
Save $14,313 AUD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $29,422 AUD at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565093496. Listed at 14 retailers as of October 30, 2026, with prices from $15,109 to $29,422, a $14,313 spread on the same certified stone. NZ Jewellers lists it at $29,422. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565093496
Dimensions11.96 × 5.87 × 3.77 mm
L/W Ratio2.04
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Indented Natural, Needle
Top View
11.96 mm5.87 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565093496
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $29,422 AUD|Low: $16,931 AUD|High: $29,422 AUD|Avg: $21,584 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
November 1, 2026
Retailer 7$16,931 AUD
Retailer 13$18,080 AUD
Retailer 6$18,557 AUD
Retailer 12$18,673 AUD
Retailer 14$19,140 AUD
Retailer 11$19,222 AUD
Retailer 8$19,751 AUD
Retailer 15$20,785 AUD
Retailer 4$21,109 AUD
Retailer 5$21,634 AUD
Retailer 3$21,921 AUD
Retailer 10$22,244 AUD
Retailer 9$25,934 AUD
Retailer 2$27,570 AUD
NZ Jewellers$29,422 AUD

38 data points across 15 retailers

14 retailers$15,109 AUD to $29,422 AUD

B+
Cheapest Retailer
-
$15,109 AUD
B+
Retailer 2
-
$18,080 AUD
$12,700 USD
View
B
Retailer 3
-
$18,673 AUD
$13,117 USD
View
Final sale: no returns
B+
Retailer 4
-
$19,140 AUD
$13,445 USD
View
Retailer 5
-
$19,222 AUD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$19,751 AUD
£10,924 GBP
View
B
Retailer 7
-
$20,785 AUD
$14,600 USD
View
B
Retailer 8
-
$21,109 AUD
$14,828 USD
View
B
Retailer 9
-
$21,634 AUD
$15,197 USD
View
B
Retailer 10
-
$21,921 AUD
$15,398 USD
View
B
Retailer 11
-
$22,244 AUD
€14,881 EUR
View
B
Retailer 12
-
$25,934 AUD
ZAR 294,303 ZAR
View
B
Retailer 13
-
$27,570 AUD
£15,249 GBP
View
Most Expensive
B
NZ Jewellers
3f3dd080-c26f-48cc-ae1d-bfa37b6cd508 · Oct 30
$29,422 AUD
$20,667 USD
View
13 more retailers have this diamond
Prices start from $15,109 AUDSave up to $14,313 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
$15,109 AUD