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Round|Natural|IGI

1.00ct K I1 Round Natural Diamond

VG • K/I1 • IGI 520278768

Shape and cutting style on the report: Round brilliant

Certificate IGI 520278768

Diamond specifications and retailer prices

From $1,400 NZD
As of November 5, 2026
Save $539 NZD (28%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,323 NZD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and I1 clarity (included), with a very-good cut grade and certified by IGI 520278768. Listed at 8 retailers as of November 5, 2026, with a 39% 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

1.00
Carat
K
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryGood
FluorescenceFaint
Crown angle37.9°
Pavilion angle40°
OriginNatural
Grading LabIGI
CertificateIGI 520278768
Dimensions6.15 × 6.19 × 4.04 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.15 mm6.19 mm1.00 ctK / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateIGI 520278768
Side View
Table 53.0%Crown 37.9°Girdle: MED-THKPavilion 40°Culet: NoneDepth 65.5%

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: $1,939 NZD|Low: $859 NZD|High: $1,951 NZD|Avg: $1,450 NZD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 5$859 NZD
Retailer 4$1,400 NZD
Retailer 2$1,412 NZD
Retailer 3$1,640 NZD
Retailer 1$1,939 NZD

20 data points across 5 retailers

8 retailers$1,400 NZD to $1,939 NZD

Retailer 1
-
$1,379 NZD
Price last confirmed 26 days ago
Retailer 2
-
$1,379 NZD
View
Price last confirmed 28 days ago
B+
Retailer 3
-
$1,400 NZD
View
B+
Retailer 4
-
$1,412 NZD
View
Retailer 5
-
$1,432 NZD
View
Price last confirmed 38 days ago
Retailer 6
-
$1,590 NZD
View
Price last confirmed 28 days ago
B+
Retailer 7
-
$1,939 NZD
View
Most Expensive
NZ Jewellers
f574eb36-3bba-43aa-9d8b-1476615f7e97 · Sep 28
$4,323 NZD
$2,430 USD
View
Price last confirmed 39 days ago
7 more retailers have this diamond
Prices start from $1,400 NZDSave up to $539 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+
1.00ct Round
$1,400 NZD