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Oval|Natural|GIA

0.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 1567424503

Certificate GIA 1567424503

Diamond specifications and retailer prices

From $846 NZD
As of November 5, 2026
Save $825 NZD (49%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,671 NZD at Frank Darling · As of November 6, 2026
View at Frank Darling

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1567424503. Listed at 8 retailers as of November 5, 2026, with prices from $846 to $1,671, a $825 spread on the same certified stone. Frank Darling lists it at $1,671. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.33°
Pavilion angle42.03°
OriginNatural
Grading LabGIA
CertificateGIA 1567424503
Dimensions6.48 × 4.47 × 2.77 mm
L/W Ratio1.45
Culet sizeNone
Top View
6.48 mm4.47 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1567424503
Side View
Table 59.0%Crown 35.33°Girdle: THN-THKPavilion 42.03°Culet: NoneDepth 61.9%

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 5
Current: $1,671 NZD|Low: $841 NZD|High: $1,685 NZD|Avg: $1,200 NZD|-0.8%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 2$846 NZD
Retailer 7$898 NZD
Retailer 8$947 NZD
Retailer 3$1,167 NZD
Retailer 5$1,257 NZD
Retailer 4$1,279 NZD
Retailer 6$1,366 NZD
Frank Darling$1,671 NZD

14 data points across 8 retailers

8 retailers$846 NZD to $1,671 NZD

A
Cheapest Retailer
-
$846 NZD
A
Retailer 2
-
$898 NZD
View
Retailer 3
-
$947 NZD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$1,167 NZD
View
B+
Retailer 5
-
$1,257 NZD
View
A
Retailer 6
-
$1,279 NZD
View
B+
Retailer 7
-
$1,366 NZD
View
Most Expensive
B
Frank Darling
2695357HK · Nov 6
$1,671 NZD
$927 USD
View
7 more retailers have this diamond
Prices start from $846 NZDSave up to $825 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.

A
0.51ct Oval
$846 NZD