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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 $550 USD
HK$4,300 HKD
As of October 29, 2026
Save $1,797 USD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,347 USD at NZ Jewellers · As of October 27, 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 27, 2026, with prices from $550 to $2,347, a $1,797 spread on the same certified stone. NZ Jewellers lists it at $2,347. 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
Color
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 29
Current: $2,347 USD|Low: $550 USD|High: $2,347 USD|Avg: $916 USD|+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 29, 2026
Retailer 5$550 USD
Retailer 9$668 USD
Retailer 4$690 USD
Retailer 13$749 USD
Retailer 15$749 USD
Retailer 17$750 USD
Retailer 3$760 USD
Retailer 8$777 USD
Retailer 14$777 USD
Retailer 6$857 USD
Retailer 12$864 USD
Retailer 7$881 USD
Retailer 2$899 USD
Retailer 10$899 USD
Retailer 11$1,059 USD
Retailer 16$1,373 USD
NZ Jewellers$2,347 USD

29 data points across 17 retailers

17 retailers$550 USD to $2,347 USD

A
Cheapest Retailer
-
$550 USD
HK$4,300 HKD
Retailer 2
-
$668 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$690 USD
View
Final sale: no returns
A
Retailer 4
-
$749 USD
View
A
Retailer 5
-
$749 USD
View
Retailer 6
-
$750 USD
View
Price last confirmed 11 days ago
A
Retailer 7
-
$760 USD
View
B+
Retailer 8
-
$777 USD
SGD 1,050 SGD
View
A
Retailer 9
-
$777 USD
View
B+
Retailer 10
-
$857 USD
View
B+
Retailer 11
-
$864 USD
View
B+
Retailer 12
-
$881 USD
View
B+
Retailer 13
-
$899 USD
£708 GBP
View
B+
Retailer 14
-
$899 USD
£708 GBP
View
B
Retailer 15
-
$1,059 USD
€1,009 EUR
View
B
Retailer 16
-
$1,373 USD
£1,081 GBP
View
Most Expensive
B
NZ Jewellers
88d87b2f-aadb-4faf-81c0-ee5e9c54b4c5 · Oct 27
$2,347 USD
View
16 more retailers have this diamond
Prices start from $550 USDSave up to $1,797 USD

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
$550 USD