Oval|Natural|GIA

0.51ct D SI2 Oval Natural Diamond

VG • D/SI2 • GIA 7553940439

Certificate GIA 7553940439

Diamond specifications and retailer prices

From $487 USD
As of October 31, 2026
Save $1,171 USD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,658 USD at NZ Jewellers · As of October 30, 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 13 retailers as of October 30, 2026, with prices from $487 to $1,658, a $1,171 spread on the same certified stone. NZ Jewellers lists it at $1,658. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,658 USD|Low: $487 USD|High: $1,788 USD|Avg: $788 USD|-7.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 11$487 USD
Retailer 10$529 USD
Retailer 8$569 USD
Retailer 9$569 USD
Retailer 3$610 USD
Retailer 2$631 USD
Retailer 4$658 USD
Retailer 7$660 USD
Retailer 6$790 USD
Retailer 5$1,220 USD
NZ Jewellers$1,658 USD

25 data points across 11 retailers

13 retailers$487 USD to $1,658 USD

A
Cheapest Retailer
-
$487 USD
Final sale: no returns
A
Retailer 2
-
$529 USD
View
A
Retailer 3
-
$556 USD
View
A
Retailer 4
-
$569 USD
View
A
Retailer 5
-
$569 USD
View
A
Retailer 6
-
$610 USD
View
Retailer 7
-
$626 USD
View
Price last confirmed 69 days ago
A
Retailer 8
-
$631 USD
£497 GBP
View
A
Retailer 9
-
$658 USD
£518 GBP
View
A
Retailer 10
-
$660 USD
View
B+
Retailer 11
-
$790 USD
€752 EUR
View
B
Retailer 12
-
$1,220 USD
£961 GBP
View
Most Expensive
B
NZ Jewellers
fda3ee94-414e-476f-92cf-9868978b21e7 · Oct 30
$1,658 USD
View
12 more retailers have this diamond
Prices start from $487 USDSave up to $1,171 USD

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
$487 USD