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Marquise|Natural|GIA

0.51ct K VS1 Marquise Natural Diamond

EX • K/VS1 • GIA 7538312003

Certificate GIA 7538312003

Diamond specifications and retailer prices

From $627 AUD
As of November 6, 2026
Save $2,061 AUD (77%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,688 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7538312003. Listed at 19 retailers as of November 5, 2026, with a 329% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
K
Colour
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7538312003
Dimensions8.76 × 4.15 × 2.55 mm
L/W Ratio2.11
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Needle
Top View
8.76 mm4.15 mm0.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7538312003
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 61.5%

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: Nov 6
Current: $627 AUD|Low: $627 AUD|High: $2,004 AUD|Avg: $1,205 AUD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$627 AUD
Retailer 6$923 AUD
Retailer 2$1,043 AUD
Retailer 7$1,129 AUD
Retailer 5$1,261 AUD
Retailer 3$1,323 AUD
Retailer 4$1,977 AUD

42 data points across 7 retailers

19 retailers$627 AUD to $2,688 AUD

A
Cheapest Retailer
-
$627 AUD
Retailer 2
-
$857 AUD
View
Price last confirmed 39 days ago
Retailer 3
-
$857 AUD
View
Price last confirmed 19 days ago
Retailer 4
-
$857 AUD
View
Price last confirmed 8 days ago
Retailer 5
-
$923 AUD
View
Price last confirmed 8 days ago
Retailer 6
-
$923 AUD
View
Price last confirmed 21 days ago
Retailer 7
-
$923 AUD
View
Price last confirmed 20 days ago
Retailer 8
-
$990 AUD
View
Price last confirmed 38 days ago
B+
Retailer 9
-
$990 AUD
View
Retailer 10
-
$990 AUD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
$1,043 AUD
View
B+
Retailer 12
-
$1,046 AUD
View
B
Retailer 13
-
$1,129 AUD
View
B+
Retailer 14
-
$1,261 AUD
View
B+
Retailer 15
-
$1,323 AUD
View
B
Retailer 16
-
$1,977 AUD
View
Retailer 17
-
$2,688 AUD
View
Price last confirmed 39 days ago
B
Retailer 18
-
$2,688 AUD
View
Most Expensive
NZ Jewellers
be489c8b-2e27-4481-9775-1d9f1c7d2a7d · Oct 17
$2,688 AUD
$1,882 USD
View
Price last confirmed 19 days ago
18 more retailers have this diamond
Prices start from $627 AUDSave up to $2,061 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
0.51ct Marquise
$627 AUD