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Marquise|Natural|GIA

0.50ct H SI2 Marquise Natural Diamond

ID • H/SI2 • GIA 2235988918

Certificate GIA 2235988918

Diamond specifications and retailer prices

From $655 AUD
$460 USD
As of October 31, 2026
Save $1,338 AUD (67%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,813 AUD at NZ Jewellers · As of September 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 2235988918. Listed at 14 retailers as of October 31, 2026, with a 204% 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
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2235988918
Dimensions8.09 × 4.13 × 2.63 mm
L/W Ratio1.96
Girdle conditionFaceted
Top View
8.09 mm4.13 mm0.50 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2235988918
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.5%

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 31
Current: $1,031 AUD|Low: $655 AUD|High: $2,056 AUD|Avg: $1,082 AUD|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 5$655 AUD
Retailer 12$720 AUD
Retailer 10$765 AUD
Retailer 9$806 AUD
Retailer 3$922 AUD
Retailer 8$946 AUD
Retailer 1$1,031 AUD
Retailer 13$1,041 AUD
Retailer 7$1,081 AUD
Retailer 2$1,104 AUD
Retailer 4$1,239 AUD
Retailer 6$1,274 AUD
Retailer 11$1,992 AUD

28 data points across 13 retailers

14 retailers$655 AUD to $1,992 AUD

A
Cheapest Retailer
-
$655 AUD
$460 USD
A
Retailer 2
-
$720 AUD
$506 USD
View
Final sale: no returns
A
Retailer 3
-
$765 AUD
HK$4,200 HKD
View
A
Retailer 4
-
$806 AUD
$566 USD
View
Retailer 5
-
$922 AUD
$648 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$946 AUD
£523 GBP
View
B+
Retailer 7
-
$1,031 AUD
£570 GBP
View
B+
Retailer 8
-
$1,041 AUD
$731 USD
View
B+
Retailer 9
-
$1,081 AUD
£598 GBP
View
B+
Retailer 10
-
$1,104 AUD
$775 USD
View
Retailer 11
-
$1,239 AUD
$870 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$1,274 AUD
€852 EUR
View
B
Retailer 13
-
$1,992 AUD
£1,102 GBP
View
Most Expensive
NZ Jewellers
f13de53d-487a-4c2e-8e77-a2bde78ba540 · Sep 30
$2,813 AUD
$1,976 USD
View
Price under review
13 more retailers have this diamond
Prices start from $655 AUDSave up to $1,338 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
$655 AUD