Marquise|Natural|GIA

0.50ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 1555995372

Certificate GIA 1555995372

Diamond specifications and retailer prices

From $512 USD
HK$4,000 HKD
As of November 1, 2026
Save $899 USD (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,916 USD 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555995372. Listed at 17 retailers as of November 1, 2026, with a 176% 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
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555995372
Dimensions7.53 × 4.22 × 2.65 mm
L/W Ratio1.78
Key to symbols
Feather, Crystal
Top View
7.53 mm4.22 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 1555995372
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 62.8%

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: Nov 1
Current: $1,916 USD|Low: $499 USD|High: $1,916 USD|Avg: $799 USD|+3.6%
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
November 2, 2026
Retailer 5$512 USD
Retailer 4$563 USD
Retailer 15$611 USD
Retailer 6$625 USD
Retailer 9$636 USD
Retailer 16$658 USD
Retailer 17$658 USD
Retailer 3$705 USD
Retailer 14$705 USD
Retailer 2$730 USD
Retailer 7$740 USD
Retailer 8$743 USD
Retailer 11$751 USD
Retailer 13$766 USD
Retailer 10$901 USD
Retailer 12$1,411 USD
NZ Jewellers$1,916 USD

28 data points across 17 retailers

17 retailers$512 USD to $1,411 USD

A
Cheapest Retailer
-
$512 USD
HK$4,000 HKD
B+
Retailer 2
-
$563 USD
View
Final sale: no returns
A
Retailer 3
-
$611 USD
View
A
Retailer 4
-
$625 USD
View
B+
Retailer 5
-
$636 USD
SGD 859 SGD
View
B+
Retailer 6
-
$658 USD
View
B+
Retailer 7
-
$658 USD
View
B+
Retailer 8
-
$705 USD
View
Retailer 9
-
$705 USD
View
Price last confirmed 14 days ago
B+
Retailer 10
-
$730 USD
£575 GBP
View
B+
Retailer 11
-
$740 USD
View
B+
Retailer 12
-
$743 USD
View
B+
Retailer 13
-
$751 USD
£591 GBP
View
B+
Retailer 14
-
$766 USD
£603 GBP
View
B+
Retailer 15
-
$901 USD
€858 EUR
View
B
Retailer 16
-
$1,411 USD
£1,111 GBP
View
Most Expensive
NZ Jewellers
49ef68ae-4073-441a-9b07-0f67b322082c · Oct 30
$1,916 USD
View
Price under review
16 more retailers have this diamond
Prices start from $512 USDSave up to $899 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
$512 USD