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Oval|Natural|GIA

0.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 5563002670

Certificate GIA 5563002670

Diamond specifications and retailer prices

From $1,173 NZD
As of November 6, 2026
Save $773 NZD (40%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,946 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5563002670. Listed at 11 retailers as of November 6, 2026, with prices from $1,173 to $1,946, a $773 spread on the same certified stone. Frank Darling lists it at $1,946. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.37°
Pavilion angle39.65°
OriginNatural
Grading LabGIA
CertificateGIA 5563002670
Dimensions6.69 × 4.35 × 2.69 mm
L/W Ratio1.54
Culet sizeNone
Top View
6.69 mm4.35 mm0.51 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5563002670
Side View
Table 59.0%Crown 38.37°Girdle: MED-THKPavilion 39.65°Culet: NoneDepth 61.8%

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 6
Current: $1,946 NZD|Low: $1,173 NZD|High: $2,016 NZD|Avg: $1,533 NZD|-3.5%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7$1,173 NZD
Retailer 3$1,183 NZD
Retailer 6$1,198 NZD
Retailer 10$1,259 NZD
Retailer 5$1,369 NZD
Retailer 8$1,541 NZD
Retailer 4$1,649 NZD
Retailer 9$1,658 NZD
Retailer 2$1,739 NZD
Retailer 11$1,768 NZD
Frank Darling$1,946 NZD

29 data points across 11 retailers

11 retailers$1,173 NZD to $1,946 NZD

A
Cheapest Retailer
-
$1,173 NZD
A
Retailer 2
-
$1,183 NZD
View
B+
Retailer 3
-
$1,198 NZD
View
B+
Retailer 4
-
$1,259 NZD
View
B+
Retailer 5
-
$1,369 NZD
View
B+
Retailer 6
-
$1,541 NZD
View
B
Retailer 7
-
$1,649 NZD
View
B
Retailer 8
-
$1,658 NZD
View
B
Retailer 9
-
$1,739 NZD
View
B
Retailer 10
-
$1,768 NZD
View
Most Expensive
B
Frank Darling
2671124HK · Nov 6
$1,946 NZD
$1,079 USD
View
10 more retailers have this diamond
Prices start from $1,173 NZDSave up to $773 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
$1,173 NZD