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Marquise|Natural|GIA

0.50ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 1549997052

Certificate GIA 1549997052

Diamond specifications and retailer prices

From $732 AUD
₹48,991 INR
As of October 30, 2026
Save $2,353 AUD (76%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,085 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter 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 1549997052. Listed at 20 retailers as of October 30, 2026, with a 321% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.50
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1549997052
Dimensions8.88 × 4.02 × 2.35 mm
L/W Ratio2.21
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
8.88 mm4.02 mm0.50 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1549997052
Side View
Table 58.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 58.6%

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 30
Current: $1,215 AUD|Low: $624 AUD|High: $2,300 AUD|Avg: $1,219 AUD|+6.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 3$732 AUD
Retailer 6$907 AUD
Retailer 4$984 AUD
Retailer 7$984 AUD
Retailer 9$1,122 AUD
Retailer 1$1,215 AUD
Retailer 8$1,272 AUD
Retailer 2$1,401 AUD
Retailer 5$2,283 AUD

43 data points across 9 retailers

20 retailers$732 AUD to $3,085 AUD

A
Cheapest Retailer
-
$732 AUD
₹48,991 INR
A
Retailer 2
-
$907 AUD
$637 USD
View
Final sale: no returns
A
Retailer 3
-
$931 AUD
$654 USD
View
A
Retailer 4
-
$984 AUD
$691 USD
View
Retailer 5
-
$984 AUD
$691 USD
View
Price last confirmed 15 days ago
Retailer 6
-
$984 AUD
$691 USD
View
Price last confirmed 32 days ago
Retailer 7
-
$984 AUD
$691 USD
View
Price last confirmed 12 days ago
A
Retailer 8
-
$984 AUD
$691 USD
View
Retailer 9
-
$1,022 AUD
$718 USD
View
Price last confirmed 14 days ago
B+
Retailer 10
-
$1,122 AUD
$788 USD
View
Retailer 11
-
$1,135 AUD
$797 USD
View
Price last confirmed 32 days ago
Retailer 12
-
$1,135 AUD
$797 USD
View
Price last confirmed 21 days ago
B+
Retailer 13
-
$1,172 AUD
$823 USD
View
B+
Retailer 14
-
$1,215 AUD
£672 GBP
View
Retailer 15
-
$1,272 AUD
£704 GBP
View
Price last confirmed 34 days ago
B+
Retailer 16
-
$1,401 AUD
€937 EUR
View
Retailer 17
-
$2,283 AUD
£1,263 GBP
View
Price last confirmed 13 days ago
Retailer 18
-
$3,085 AUD
$2,167 USD
View
Price last confirmed 33 days ago
B
Retailer 19
-
$3,085 AUD
$2,167 USD
View
Most Expensive
NZ Jewellers
1785797d-f57c-45a0-9311-63bbc0ccb5c5 · Oct 17
$3,085 AUD
$2,167 USD
View
Price last confirmed 13 days ago
19 more retailers have this diamond
Prices start from $732 AUDSave up to $2,353 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
0.50ct Marquise
$732 AUD