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Round|Natural|IGI

1.23ct K VS1 Round Natural Diamond

EX • K/VS1 • IGI 837656136

Certificate IGI 837656136

Diamond specifications and retailer prices

From $3,278 NZD
As of November 6, 2026
Save $5,161 NZD (61%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,439 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 837656136. Listed at 12 retailers as of November 5, 2026, with prices from $3,278 to $8,439, a $5,161 spread on the same certified stone. NZ Jewellers lists it at $8,439. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 837656136
Dimensions6.80 × 6.85 × 4.28 mm
L/W Ratio1.01
Top View
6.80 mm6.85 mm1.23 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 837656136
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCuletDepth 62.6%

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: $8,439 NZD|Low: $3,278 NZD|High: $8,439 NZD|Avg: $4,605 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2$3,278 NZD
Retailer 3$3,689 NZD
Retailer 5$3,756 NZD
Retailer 9$4,035 NZD
Retailer 10$4,050 NZD
Retailer 12$4,223 NZD
Retailer 6$4,286 NZD
Retailer 4$4,658 NZD
Retailer 8$4,925 NZD
Retailer 7$5,125 NZD
Retailer 11$7,051 NZD
NZ Jewellers$8,439 NZD

7 data points across 12 retailers

12 retailers$3,278 NZD to $8,439 NZD

A
Cheapest Retailer
-
$3,278 NZD
A
Retailer 2
-
$3,689 NZD
View
A
Retailer 3
-
$3,756 NZD
View
A
Retailer 4
-
$4,035 NZD
View
A
Retailer 5
-
$4,050 NZD
View
B+
Retailer 6
-
$4,223 NZD
View
B+
Retailer 7
-
$4,286 NZD
View
B+
Retailer 8
-
$4,658 NZD
View
B+
Retailer 9
-
$4,925 NZD
View
B+
Retailer 10
-
$5,125 NZD
View
B
Retailer 11
-
$7,051 NZD
View
Most Expensive
B
NZ Jewellers
5af47527-02cb-4401-b143-5886d9ae5b64 · Nov 5
$8,439 NZD
$4,678 USD
View
11 more retailers have this diamond
Prices start from $3,278 NZDSave up to $5,161 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
1.23ct Round
$3,278 NZD