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Marquise|Natural|GIA

0.50ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 6555998638

Certificate GIA 6555998638

Diamond specifications and retailer prices

From $784 AUD
HK$4,300 HKD
As of October 30, 2026
Save $2,558 AUD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,341 AUD at NZ Jewellers · As of October 30, 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 6555998638. Listed at 17 retailers as of October 30, 2026, with prices from $784 to $3,341, a $2,558 spread on the same certified stone. NZ Jewellers lists it at $3,341. 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 6555998638
Dimensions8.73 × 4.00 × 2.38 mm
L/W Ratio2.18
Key to symbols
Twinning Wisp, Feather
Top View
8.73 mm4.00 mm0.50 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555998638
Side View
Table 59.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 59.4%

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: $3,341 AUD|Low: $784 AUD|High: $3,341 AUD|Avg: $1,306 AUD|+3.5%
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
Retailer 16
Retailer 17
October 30, 2026
Retailer 5$784 AUD
Retailer 9$951 AUD
Retailer 4$982 AUD
Retailer 13$1,066 AUD
Retailer 15$1,066 AUD
Retailer 17$1,068 AUD
Retailer 3$1,082 AUD
Retailer 8$1,106 AUD
Retailer 14$1,106 AUD
Retailer 6$1,220 AUD
Retailer 12$1,230 AUD
Retailer 7$1,254 AUD
Retailer 2$1,277 AUD
Retailer 10$1,279 AUD
Retailer 11$1,508 AUD
Retailer 16$1,954 AUD
NZ Jewellers$3,341 AUD

29 data points across 17 retailers

17 retailers$784 AUD to $3,341 AUD

A
Cheapest Retailer
-
$784 AUD
HK$4,300 HKD
Retailer 2
-
$951 AUD
$668 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$982 AUD
$690 USD
View
Final sale: no returns
A
Retailer 4
-
$1,066 AUD
$749 USD
View
A
Retailer 5
-
$1,066 AUD
$749 USD
View
Retailer 6
-
$1,068 AUD
$750 USD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$1,082 AUD
$760 USD
View
B+
Retailer 8
-
$1,106 AUD
SGD 1,050 SGD
View
A
Retailer 9
-
$1,106 AUD
$777 USD
View
B+
Retailer 10
-
$1,220 AUD
$857 USD
View
B+
Retailer 11
-
$1,230 AUD
$864 USD
View
B+
Retailer 12
-
$1,254 AUD
$881 USD
View
B+
Retailer 13
-
$1,277 AUD
£706 GBP
View
B+
Retailer 14
-
$1,279 AUD
£708 GBP
View
B
Retailer 15
-
$1,508 AUD
€1,009 EUR
View
B
Retailer 16
-
$1,954 AUD
£1,081 GBP
View
Most Expensive
B
NZ Jewellers
88d87b2f-aadb-4faf-81c0-ee5e9c54b4c5 · Oct 30
$3,341 AUD
$2,347 USD
View
16 more retailers have this diamond
Prices start from $784 AUDSave up to $2,558 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
$784 AUD