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Marquise|Natural|GIA

1.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 1568225247

Certificate GIA 1568225247

Diamond specifications and retailer prices

From $16,025 AUD
$11,257 USD
As of October 30, 2026
Save $12,481 AUD (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $28,506 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 1568225247. Listed at 10 retailers as of October 30, 2026, with prices from $16,025 to $28,506, a $12,481 spread on the same certified stone. NZ Jewellers lists it at $28,506. 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 1568225247
Dimensions11.28 × 5.93 × 3.74 mm
L/W Ratio1.90
Girdle conditionFaceted
Top View
11.28 mm5.93 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1568225247
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCuletDepth 63.1%

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 30
Current: $28,506 AUD|Low: $16,025 AUD|High: $28,506 AUD|Avg: $20,280 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8$16,025 AUD
Retailer 10$16,268 AUD
Retailer 6$18,245 AUD
Retailer 4$18,273 AUD
Retailer 7$18,530 AUD
Retailer 3$19,137 AUD
Retailer 9$19,241 AUD
Retailer 5$20,827 AUD
Retailer 2$26,713 AUD
NZ Jewellers$28,506 AUD

41 data points across 10 retailers

10 retailers$16,025 AUD to $28,506 AUD

B+
Cheapest Retailer
-
$16,025 AUD
$11,257 USD
B+
Retailer 2
-
$16,268 AUD
CA$15,872 CAD
View
B
Retailer 3
-
$18,245 AUD
$12,816 USD
View
B+
Retailer 4
-
$18,273 AUD
£10,107 GBP
View
B
Retailer 5
-
$18,530 AUD
$13,016 USD
View
B+
Retailer 6
-
$19,137 AUD
£10,585 GBP
View
B+
Retailer 7
-
$19,241 AUD
$13,516 USD
View
B
Retailer 8
-
$20,827 AUD
€13,933 EUR
View
B
Retailer 9
-
$26,713 AUD
£14,775 GBP
View
Most Expensive
B
NZ Jewellers
74102820-ddbd-44c3-b994-c6a0c76f7b2f · Oct 30
$28,506 AUD
$20,024 USD
View
9 more retailers have this diamond
Prices start from $16,025 AUDSave up to $12,481 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
$16,025 AUD