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Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

GD • F/SI2 • GIA 2536781518

Certificate GIA 2536781518

Diamond specifications and retailer prices

From $1,115 NZD
As of November 6, 2026
Save $2,677 NZD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,792 NZD 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 $1,115 to $3,792, a $2,677 spread on the same certified stone. NZ Jewellers lists it at $3,792. 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
Colour
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: $3,792 NZD|Low: $1,115 NZD|High: $3,792 NZD|Avg: $1,689 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$1,115 NZD
Retailer 7$1,176 NZD
Retailer 9$1,209 NZD
Retailer 10$1,209 NZD
Retailer 8$1,256 NZD
Retailer 11$1,396 NZD
Retailer 2$1,436 NZD
Retailer 4$1,467 NZD
Retailer 5$1,721 NZD
Retailer 6$2,792 NZD
NZ Jewellers$3,792 NZD

41 data points across 11 retailers

13 retailers$1,115 NZD to $3,792 NZD

B+
Cheapest Retailer
-
$1,115 NZD
Final sale: no returns
B+
Retailer 2
-
$1,176 NZD
View
B+
Retailer 3
-
$1,209 NZD
View
Retailer 4
-
$1,209 NZD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$1,256 NZD
View
B
Retailer 6
-
$1,396 NZD
View
B+
Retailer 7
-
$1,436 NZD
View
B
Retailer 8
-
$1,443 NZD
View
B
Retailer 9
-
$1,447 NZD
View
B
Retailer 10
-
$1,467 NZD
View
B
Retailer 11
-
$1,721 NZD
View
B
Retailer 12
-
$2,792 NZD
View
Most Expensive
C
NZ Jewellers
25b15ec1-5bc2-4963-9c68-84a4af09dab0 · Nov 5
$3,792 NZD
$2,102 USD
View
12 more retailers have this diamond
Prices start from $1,115 NZDSave up to $2,677 NZD

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
$1,115 NZD