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Round|Natural|IGI

1.23ct K I1 Round Natural Diamond

EX • K/I1 • IGI 341806037

Shape and cutting style on the report: Round brilliant

Certificate IGI 341806037

Diamond specifications and retailer prices

From $1,787 AUD
As of November 4, 2026
Save $2,913 AUD (62%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,700 AUD 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 I1 clarity (included), with a top-tier cut grade and certified by IGI 341806037. Listed at 9 retailers as of November 4, 2026, with prices from $1,787 to $4,700, a $2,913 spread on the same certified stone. NZ Jewellers lists it at $4,700. 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
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 341806037
Dimensions6.97 × 7.00 × 4.14 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
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Top View
6.97 mm7.00 mm1.23 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 341806037
Side View
Table 61.5%Crown 32°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 59.3%

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 4
Current: $2,463 AUD|Low: $1,787 AUD|High: $2,493 AUD|Avg: $2,149 AUD|+0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 4$1,787 AUD
Retailer 2$2,048 AUD
Retailer 3$2,293 AUD
Retailer 1$2,463 AUD

17 data points across 4 retailers

9 retailers$1,787 AUD to $4,700 AUD

B+
Cheapest Retailer
-
$1,787 AUD
B+
Retailer 2
-
$1,927 AUD
View
Retailer 3
-
$1,927 AUD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$2,016 AUD
View
B+
Retailer 5
-
$2,048 AUD
View
B+
Retailer 6
-
$2,223 AUD
View
B+
Retailer 7
-
$2,463 AUD
View
B
Retailer 8
-
$2,800 AUD
View
Most Expensive
C
NZ Jewellers
2fe6ab8a-d131-4877-a365-51c1f3555504 · Nov 5
$4,700 AUD
$3,290 USD
View
8 more retailers have this diamond
Prices start from $1,787 AUDSave up to $2,913 AUD

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+
1.23ct Round
$1,787 AUD