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3.05ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 623473225

Shape and cutting style on the report: Round brilliant

Certificate IGI 623473225

Diamond specifications and retailer prices

From $28,330 NZD
$15,940 USD
As of November 1, 2026
Save $16,653 NZD (37%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $44,983 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 3.05ct natural round diamond

This 3.05ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 623473225. Listed at 15 retailers as of November 1, 2026, with prices from $28,330 to $44,983, a $16,653 spread on the same certified stone. MOH London lists it at $44,983. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.05
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 623473225
Dimensions9.41 × 9.35 × 5.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.41 mm9.35 mm3.05 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 623473225
Side View
Table 60.0%Crown 32.4°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.7%

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 1
Current: $44,983 NZD|Low: $28,330 NZD|High: $48,060 NZD|Avg: $34,716 NZD|-6.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 13$28,330 NZD
Retailer 3$28,940 NZD
Retailer 4$29,229 NZD
Retailer 11$30,583 NZD
Retailer 15$31,085 NZD
Retailer 2$31,223 NZD
Retailer 6$31,794 NZD
Retailer 9$33,573 NZD
Retailer 7$34,442 NZD
Retailer 12$34,795 NZD
Retailer 5$35,336 NZD
Retailer 10$35,409 NZD
Retailer 14$37,338 NZD
Retailer 8$40,396 NZD
MOH London$44,983 NZD

18 data points across 15 retailers

15 retailers$28,330 NZD to $44,983 NZD

A
Cheapest Retailer
-
$28,330 NZD
$15,940 USD
A
Retailer 2
-
$28,940 NZD
$16,283 USD
View
A
Retailer 3
-
$29,229 NZD
$16,446 USD
View
A
Retailer 4
-
$30,583 NZD
£13,549 GBP
View
A
Retailer 5
-
$31,085 NZD
$17,490 USD
View
A
Retailer 6
-
$31,223 NZD
£13,833 GBP
View
A
Retailer 7
-
$31,794 NZD
$17,889 USD
View
A
Retailer 8
-
$33,573 NZD
$18,890 USD
View
A
Retailer 9
-
$34,442 NZD
$19,379 USD
View
A
Retailer 10
-
$34,795 NZD
€18,645 EUR
View
A
Retailer 11
-
$35,336 NZD
$19,882 USD
View
A
Retailer 12
-
$35,409 NZD
$19,923 USD
View
A
Retailer 13
-
$37,338 NZD
ZAR 339,394 ZAR
View
B+
Retailer 14
-
$40,396 NZD
$22,729 USD
View
Most Expensive
B+
MOH London
A3C8E18F0 · Nov 2
$44,983 NZD
£19,929 GBP
View
14 more retailers have this diamond
Prices start from $28,330 NZDSave up to $16,653 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
3.05ct Round
$28,330 NZD