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Marquise|Natural|GIA

0.50ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 7551513494

Certificate GIA 7551513494

Diamond specifications and retailer prices

From $655 AUD
$459 USD
As of November 2, 2026
Save $1,804 AUD (73%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,459 AUD at NZ Jewellers · As of November 3, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7551513494. Listed at 17 retailers as of November 2, 2026, with prices from $655 to $2,459, a $1,804 spread on the same certified stone. NZ Jewellers lists it at $2,459. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle35.9°
Pavilion angle40.5°
OriginNatural
Grading LabGIA
CertificateGIA 7551513494
Dimensions7.77 × 4.18 × 2.67 mm
L/W Ratio1.86
Girdle conditionFaceted
Top View
7.77 mm4.18 mm0.50 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7551513494
Side View
Table 60.0%Crown 35.9°Girdle: MED-VTKPavilion 40.5°Culet: NoneDepth 63.9%

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 2
Current: $2,459 AUD|Low: $586 AUD|High: $2,644 AUD|Avg: $1,143 AUD|-7.0%
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
Retailer 16
November 3, 2026
Retailer 16$655 AUD
Retailer 14$678 AUD
Retailer 15$711 AUD
Retailer 3$731 AUD
Retailer 4$819 AUD
Retailer 7$849 AUD
Retailer 10$962 AUD
Retailer 12$963 AUD
Retailer 11$982 AUD
Retailer 2$990 AUD
Retailer 13$996 AUD
Retailer 5$1,166 AUD
Retailer 6$1,265 AUD
Retailer 8$1,268 AUD
Retailer 9$1,810 AUD
NZ Jewellers$2,459 AUD

29 data points across 16 retailers

17 retailers$655 AUD to $2,459 AUD

A
Cheapest Retailer
-
$655 AUD
$459 USD
Final sale: no returns
A
Retailer 2
-
$678 AUD
$475 USD
View
A
Retailer 3
-
$711 AUD
$498 USD
View
A
Retailer 4
-
$731 AUD
HK$4,000 HKD
View
A
Retailer 5
-
$819 AUD
$574 USD
View
Retailer 6
-
$823 AUD
$577 USD
View
Price last confirmed 33 days ago
A
Retailer 7
-
$849 AUD
$595 USD
View
A
Retailer 8
-
$962 AUD
£531 GBP
View
A
Retailer 9
-
$963 AUD
$675 USD
View
A
Retailer 10
-
$982 AUD
£542 GBP
View
A
Retailer 11
-
$990 AUD
£546 GBP
View
A
Retailer 12
-
$996 AUD
$698 USD
View
B+
Retailer 13
-
$1,166 AUD
€778 EUR
View
B+
Retailer 14
-
$1,265 AUD
ZAR 14,322 ZAR
View
Retailer 15
-
$1,268 AUD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$1,810 AUD
£999 GBP
View
Most Expensive
B
NZ Jewellers
8dc96c4e-6568-43ba-8bfe-e8e362d95ce7 · Nov 3
$2,459 AUD
$1,723 USD
View
16 more retailers have this diamond
Prices start from $655 AUDSave up to $1,804 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