Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

GD • F/SI2 • GIA 2536781518

Certificate GIA 2536781518

Diamond specifications and retailer prices

From $618 USD
As of November 6, 2026
Save $1,484 USD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,102 USD at NZ Jewellers · As of November 5, 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 F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2536781518. Listed at 13 retailers as of November 5, 2026, with prices from $618 to $2,102, a $1,484 spread on the same certified stone. NZ Jewellers lists it at $2,102. 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
F
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2536781518
Dimensions6.51 × 4.65 × 2.67 mm
L/W Ratio1.40
Top View
6.51 mm4.65 mm0.51 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2536781518
Side View
Table 63.0%CrownGirdlePavilionCulet: NoneDepth 57.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,102 USD|Low: $618 USD|High: $2,102 USD|Avg: $936 USD
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 3$618 USD
Retailer 7$652 USD
Retailer 9$670 USD
Retailer 10$670 USD
Retailer 8$696 USD
Retailer 11$774 USD
Retailer 4$796 USD
Retailer 2$818 USD
Retailer 5$954 USD
Retailer 6$1,548 USD
NZ Jewellers$2,102 USD

42 data points across 11 retailers

13 retailers$618 USD to $2,102 USD

B+
Cheapest Retailer
-
$618 USD
Final sale: no returns
B+
Retailer 2
-
$652 USD
View
B+
Retailer 3
-
$670 USD
View
Retailer 4
-
$670 USD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$696 USD
View
B
Retailer 6
-
$774 USD
View
B+
Retailer 7
-
$796 USD
View
B
Retailer 8
-
$800 USD
View
B
Retailer 9
-
$802 USD
View
B
Retailer 10
-
$818 USD
View
B
Retailer 11
-
$954 USD
View
B
Retailer 12
-
$1,548 USD
View
Most Expensive
C
NZ Jewellers
25b15ec1-5bc2-4963-9c68-84a4af09dab0 · Nov 5
$2,102 USD
View
12 more retailers have this diamond
Prices start from $618 USDSave up to $1,484 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.

B+
0.51ct Oval
$618 USD