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Oval|Natural|GIA

0.51ct D SI2 Oval Natural Diamond

VG • D/SI2 • GIA 7553940439

Certificate GIA 7553940439

Diamond specifications and retailer prices

From $709 AUD
As of November 3, 2026
Save $1,704 AUD (71%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,413 AUD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7553940439. Listed at 12 retailers as of November 2, 2026, with prices from $709 to $2,413, a $1,704 spread on the same certified stone. NZ Jewellers lists it at $2,413. 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

0.51
Carat
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.02°
OriginNatural
Grading LabGIA
CertificateGIA 7553940439
Dimensions6.39 × 4.45 × 2.85 mm
L/W Ratio1.44
Culet sizeNone
Key to symbols
Feather
Top View
6.39 mm4.45 mm0.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7553940439
Side View
Table 60.0%Crown 36.02°GirdlePavilionCulet: NDepth 64.0%

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 3
Current: $2,413 AUD|Low: $709 AUD|High: $2,540 AUD|Avg: $1,139 AUD|-5.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 3$709 AUD
Retailer 12$770 AUD
Retailer 10$828 AUD
Retailer 11$828 AUD
Retailer 4$888 AUD
Retailer 7$915 AUD
Retailer 2$917 AUD
Retailer 6$955 AUD
Retailer 9$961 AUD
Retailer 8$1,148 AUD
Retailer 5$1,774 AUD
NZ Jewellers$2,413 AUD

26 data points across 12 retailers

12 retailers$709 AUD to $2,413 AUD

A
Cheapest Retailer
-
$709 AUD
Final sale: no returns
A
Retailer 2
-
$770 AUD
View
Retailer 3
-
$828 AUD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$828 AUD
View
A
Retailer 5
-
$888 AUD
View
B+
Retailer 6
-
$915 AUD
View
A
Retailer 7
-
$917 AUD
View
A
Retailer 8
-
$955 AUD
View
A
Retailer 9
-
$961 AUD
View
B+
Retailer 10
-
$1,148 AUD
View
B
Retailer 11
-
$1,774 AUD
View
Most Expensive
B
NZ Jewellers
fda3ee94-414e-476f-92cf-9868978b21e7 · Nov 2
$2,413 AUD
$1,658 USD
View
11 more retailers have this diamond
Prices start from $709 AUDSave up to $1,704 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 Oval
$709 AUD