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Round|Natural|IGI

0.51ct K IF Round Natural Diamond

EX • K/IF • IGI 502190811

Shape and cutting style on the report: Round brilliant

Certificate IGI 502190811

Diamond specifications and retailer prices

From $954 NZD
As of November 4, 2026
Save $1,091 NZD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,399 NZD at NZ Jewellers · As of October 17, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 502190811. Listed at 14 retailers as of November 4, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 502190811
Dimensions5.12 × 5.16 × 3.16 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
5.12 mm5.16 mm0.51 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 502190811
Side View
Table 59.5%Crown 34.4°GirdlePavilion 41.5°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,135 NZD|Low: $967 NZD|High: $2,073 NZD|Avg: $1,293 NZD|+6.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 7$967 NZD
Retailer 2$1,075 NZD
Retailer 1$1,135 NZD
Retailer 6$1,254 NZD
Retailer 5$1,328 NZD
Retailer 3$1,375 NZD
Retailer 4$2,046 NZD

34 data points across 7 retailers

14 retailers$954 NZD to $2,046 NZD

Retailer 1
-
$888 NZD
Price last confirmed 20 days ago
Retailer 2
-
$954 NZD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$954 NZD
View
Retailer 4
-
$954 NZD
View
Price last confirmed 22 days ago
Retailer 5
-
$954 NZD
View
Price last confirmed 8 days ago
Retailer 6
-
$1,023 NZD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$1,075 NZD
View
B+
Retailer 8
-
$1,122 NZD
View
B+
Retailer 9
-
$1,135 NZD
View
B+
Retailer 10
-
$1,254 NZD
View
B+
Retailer 11
-
$1,328 NZD
View
B+
Retailer 12
-
$1,375 NZD
View
B
Retailer 13
-
$2,046 NZD
View
Most Expensive
NZ Jewellers
7572497d-371a-432a-b957-4212bf7a4aaf · Oct 17
$3,399 NZD
$1,884 USD
View
Price last confirmed 20 days ago
13 more retailers have this diamond
Prices start from $954 NZDSave up to $1,091 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 Round
$954 NZD