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Oval|Natural|GIA

0.51ct G SI1 Oval Natural Diamond

VG • G/SI1 • GIA 6525052100

Certificate GIA 6525052100

Diamond specifications and retailer prices

From $857 NZD
As of November 6, 2026
Save $1,831 NZD (68%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,658 NZD at NZ Jewellers · As of October 23, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6525052100. Listed at 18 retailers as of November 4, 2026, with a 214% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6525052100
Dimensions6.28 × 4.54 × 2.75 mm
L/W Ratio1.38
Top View
6.28 mm4.54 mm0.51 ctG / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 6525052100
Side View
Table 62.0%CrownGirdle: MED-MEDPavilionCulet: NoneDepth 60.6%

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: $857 NZD|Low: $857 NZD|High: $2,726 NZD|Avg: $1,553 NZD|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1$857 NZD
Retailer 9$1,075 NZD
Retailer 10$1,182 NZD
Retailer 7$1,256 NZD
Retailer 4$1,412 NZD
Retailer 8$1,497 NZD
Retailer 3$1,706 NZD
Retailer 2$1,753 NZD
Retailer 5$1,798 NZD
Retailer 6$2,688 NZD

34 data points across 10 retailers

18 retailers$857 NZD to $2,688 NZD

A
Cheapest Retailer
-
$857 NZD
B+
Retailer 2
-
$1,075 NZD
View
Final sale: no returns
Retailer 3
-
$1,167 NZD
View
Price last confirmed 15 days ago
Retailer 4
-
$1,182 NZD
View
Price last confirmed 18 days ago
Retailer 5
-
$1,256 NZD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
$1,256 NZD
View
Retailer 7
-
$1,256 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,346 NZD
View
Retailer 9
-
$1,346 NZD
View
Price last confirmed 14 days ago
B+
Retailer 10
-
$1,353 NZD
View
B+
Retailer 11
-
$1,403 NZD
View
B+
Retailer 12
-
$1,412 NZD
View
B
Retailer 13
-
$1,497 NZD
View
B
Retailer 14
-
$1,706 NZD
View
Retailer 15
-
$1,753 NZD
View
Price last confirmed 33 days ago
B
Retailer 16
-
$1,798 NZD
View
B
Retailer 17
-
$2,688 NZD
View
Most Expensive
NZ Jewellers
fbed95b4-6cea-404f-83f0-49db7b4b76f2 · Oct 23
$3,658 NZD
$2,028 USD
View
Price last confirmed 14 days ago
17 more retailers have this diamond
Prices start from $857 NZDSave up to $1,831 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
$857 NZD