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Marquise|Natural|GIA

0.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 7552995448

Certificate GIA 7552995448

Diamond specifications and retailer prices

From $838 AUD
As of November 6, 2026
Save $1,464 AUD (64%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,224 AUD at NZ Jewellers · As of September 28, 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 I 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 7552995448. Listed at 22 retailers as of November 2, 2026, with a 175% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7552995448
Dimensions8.58 × 3.99 × 2.50 mm
L/W Ratio2.15
Key to symbols
Feather
Top View
8.58 mm3.99 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7552995448
Side View
Table 56.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 62.6%

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: $3,126 AUD|Low: $816 AUD|High: $3,224 AUD|Avg: $1,400 AUD|-3.0%
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
November 6, 2026
Retailer 14$838 AUD
Retailer 13$918 AUD
Retailer 5$943 AUD
Retailer 12$997 AUD
Retailer 7$1,028 AUD
Retailer 3$1,035 AUD
Retailer 4$1,150 AUD
Retailer 15$1,189 AUD
Retailer 2$1,218 AUD
Retailer 11$1,259 AUD
Retailer 9$1,413 AUD
Retailer 8$1,538 AUD
Retailer 6$1,544 AUD
Retailer 10$2,302 AUD
NZ Jewellers$3,126 AUD

42 data points across 15 retailers

22 retailers$838 AUD to $2,302 AUD

A
Cheapest Retailer
-
$838 AUD
B+
Retailer 2
-
$918 AUD
View
Final sale: no returns
Retailer 3
-
$943 AUD
View
Price last confirmed 20 days ago
Retailer 4
-
$997 AUD
View
Price last confirmed 18 days ago
Retailer 5
-
$997 AUD
View
Price last confirmed 22 days ago
Retailer 6
-
$1,028 AUD
View
Price last confirmed 45 days ago
Retailer 7
-
$1,028 AUD
View
Price last confirmed 48 days ago
Retailer 8
-
$1,035 AUD
View
Price last confirmed 22 days ago
Retailer 9
-
$1,035 AUD
View
Price last confirmed 11 days ago
Retailer 10
-
$1,150 AUD
View
Price last confirmed 17 days ago
Retailer 11
-
$1,186 AUD
View
Price last confirmed 39 days ago
Retailer 12
-
$1,186 AUD
View
Price last confirmed 46 days ago
B
Retailer 13
-
$1,189 AUD
View
B+
Retailer 14
-
$1,218 AUD
View
B
Retailer 15
-
$1,259 AUD
View
B
Retailer 16
-
$1,413 AUD
View
B
Retailer 17
-
$1,538 AUD
View
Retailer 18
-
$1,544 AUD
View
Price last confirmed 34 days ago
B
Retailer 19
-
$2,302 AUD
View
Retailer 20
-
$3,126 AUD
View
Price under review
Retailer 21
-
$3,224 AUD
View
Price under review
Most Expensive
NZ Jewellers
6790da7f-086b-474c-8ec5-a17ba74d5700 · Sep 28
$3,224 AUD
$2,215 USD
View
Price under review
21 more retailers have this diamond
Prices start from $838 AUDSave up to $1,464 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
$838 AUD