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Marquise|Natural|GIA

0.50ct F SI1 Marquise Natural Diamond

ID • F/SI1 • GIA 2557610480

Certificate GIA 2557610480

Diamond specifications and retailer prices

From $677 AUD
As of November 6, 2026
Save $2,343 AUD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,361 AUD at NZ Jewellers · As of September 20, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557610480. Listed at 12 retailers as of November 5, 2026, with a 346% 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2557610480
Dimensions7.74 × 4.06 × 2.64 mm
L/W Ratio1.91
Girdle conditionVery Thick
Top View
7.74 mm4.06 mm0.50 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2557610480
Side View
Table 60.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 65.0%

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: $3,020 AUD|Low: $677 AUD|High: $3,299 AUD|Avg: $1,438 AUD|-8.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 11$677 AUD
Retailer 6$715 AUD
Retailer 10$1,140 AUD
Retailer 4$1,175 AUD
Retailer 9$1,207 AUD
Retailer 5$1,230 AUD
Retailer 7$1,362 AUD
Retailer 8$1,486 AUD
Retailer 3$1,581 AUD
Retailer 2$2,212 AUD
NZ Jewellers$3,020 AUD

37 data points across 11 retailers

12 retailers$677 AUD to $3,020 AUD

A
Cheapest Retailer
-
$677 AUD
Final sale: no returns
A
Retailer 2
-
$715 AUD
View
B+
Retailer 3
-
$1,140 AUD
View
B+
Retailer 4
-
$1,175 AUD
View
Retailer 5
-
$1,207 AUD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$1,230 AUD
View
B+
Retailer 7
-
$1,362 AUD
View
B+
Retailer 8
-
$1,486 AUD
View
Retailer 9
-
$1,581 AUD
View
Price last confirmed 34 days ago
B
Retailer 10
-
$2,212 AUD
View
B
Retailer 11
-
$3,020 AUD
View
Most Expensive
NZ Jewellers
41ac391f-054d-44d6-bd7c-67501b39083f · Sep 20
$3,361 AUD
$2,309 USD
View
Price under review
11 more retailers have this diamond
Prices start from $677 AUDSave up to $2,343 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
$677 AUD