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Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 7542349997

Certificate GIA 7542349997

Diamond specifications and retailer prices

From $915 AUD
As of November 6, 2026
Save $1,253 AUD (58%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,720 AUD at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7542349997. Listed at 24 retailers as of November 4, 2026, with a 137% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
Pavilion angle38.8°
OriginNatural
Grading LabGIA
CertificateGIA 7542349997
Dimensions7.99 × 4.10 × 2.54 mm
L/W Ratio1.95
Girdle conditionFaceted
Top View
7.99 mm4.10 mm0.50 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7542349997
Side View
Table 57.0%CrownGirdle: THN-VTKPavilion 38.8°Culet: NoneDepth 62.0%

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 6
Current: $1,413 AUD|Low: $915 AUD|High: $2,199 AUD|Avg: $1,408 AUD|+5.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11$915 AUD
Retailer 5$1,014 AUD
Retailer 9$1,067 AUD
Retailer 4$1,074 AUD
Retailer 2$1,116 AUD
Retailer 3$1,118 AUD
Retailer 10$1,332 AUD
Retailer 1$1,413 AUD
Retailer 8$1,671 AUD
Retailer 12$1,783 AUD
Retailer 6$1,829 AUD
Retailer 7$2,169 AUD

45 data points across 12 retailers

24 retailers$915 AUD to $2,169 AUD

A
Cheapest Retailer
-
$915 AUD
Final sale: no returns
B+
Retailer 2
-
$987 AUD
View
B+
Retailer 3
-
$1,014 AUD
View
B+
Retailer 4
-
$1,067 AUD
View
Retailer 5
-
$1,074 AUD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$1,074 AUD
View
B+
Retailer 7
-
$1,086 AUD
View
B+
Retailer 8
-
$1,092 AUD
View
B+
Retailer 9
-
$1,116 AUD
View
B+
Retailer 10
-
$1,118 AUD
View
B
Retailer 11
-
$1,228 AUD
View
B
Retailer 12
-
$1,240 AUD
View
B
Retailer 13
-
$1,324 AUD
View
B
Retailer 14
-
$1,324 AUD
View
B
Retailer 15
-
$1,324 AUD
View
B
Retailer 16
-
$1,332 AUD
View
B
Retailer 17
-
$1,368 AUD
View
B
Retailer 18
-
$1,413 AUD
View
B
Retailer 19
-
$1,671 AUD
View
Retailer 20
-
$1,783 AUD
View
Price last confirmed 34 days ago
B
Retailer 21
-
$1,829 AUD
View
B
Retailer 22
-
$1,907 AUD
View
B
Retailer 23
-
$2,169 AUD
View
Most Expensive
NZ Jewellers
155a80ee-2bbc-416d-afa0-363496a1653f · Nov 5
$3,720 AUD
$2,556 USD
View
Price under review
23 more retailers have this diamond
Prices start from $915 AUDSave up to $1,253 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
$915 AUD