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Round|Natural|GIA

0.51ct K I1 Round Natural Diamond

GD • K/I1 • GIA 3245397346

Certificate GIA 3245397346

Diamond specifications and retailer prices

From $763 NZD
As of November 5, 2026
Save $2,462 NZD (76%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,225 NZD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and I1 clarity (included), with a standard cut grade and certified by GIA 3245397346. Listed at 6 retailers as of November 4, 2026, with prices from $763 to $3,225, a $2,462 spread on the same certified stone. NZ Jewellers lists it at $3,225. 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
K
Colour
I1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 3245397346
Dimensions4.91 × 4.93 × 3.23 mm
L/W Ratio1.00
Star length50%
Lower girdle85%
Top View
4.91 mm4.93 mm0.51 ctK / I1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3245397346
Side View
Table 57.0%Crown 38°Girdle: THK-VTKPavilion 40.4°Culet: NoneDepth 65.7%

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 5
Current: $3,225 NZD|Low: $763 NZD|High: $3,225 NZD|Avg: $1,240 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5$763 NZD
Retailer 3$822 NZD
Retailer 7$822 NZD
Retailer 6$881 NZD
Retailer 4$930 NZD
Retailer 8$1,082 NZD
Retailer 2$1,259 NZD
Retailer 9$1,265 NZD
NZ Jewellers$3,225 NZD

22 data points across 9 retailers

6 retailers$763 NZD to $3,225 NZD

B+
Cheapest Retailer
-
$763 NZD
Retailer 2
-
$822 NZD
View
Price last confirmed 8 days ago
B
Retailer 3
-
$822 NZD
View
B
Retailer 4
-
$881 NZD
View
B
Retailer 5
-
$1,259 NZD
View
Most Expensive
C
NZ Jewellers
702d8868-f5f1-4f1a-8092-4103ee61c4f8 · Nov 4
$3,225 NZD
$1,813 USD
View
5 more retailers have this diamond
Prices start from $763 NZDSave up to $2,462 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 Round
$763 NZD