Round|Natural|IGI

0.39ct G SI2 Round Natural Diamond

EX • G/SI2 • IGI 657454128

Shape and cutting style on the report: Round brilliant

Certificate IGI 657454128

Diamond specifications and retailer prices

From $626 NZD
$353 USD
As of October 28, 2026
Save $1,007 NZD (62%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,402 NZD at NZ Jewellers · As of September 24, 2026
View at NZ Jewellers

About this 0.39ct natural round diamond

This 0.39ct natural round sits in the sub-half-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 657454128. Listed at 12 retailers as of October 28, 2026, with a 161% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.39
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 657454128
Dimensions4.74 × 4.70 × 2.89 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
4.74 mm4.70 mm0.39 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 657454128
Side View
Table 56.0%Crown 34.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.3%

Caratlytics Score

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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: Oct 28
Current: $1,030 NZD|Low: $626 NZD|High: $1,465 NZD|Avg: $814 NZD|+3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 7$626 NZD
Retailer 3$652 NZD
Retailer 2$655 NZD
Retailer 9$676 NZD
Retailer 6$678 NZD
Retailer 5$699 NZD
Retailer 8$845 NZD
Retailer 10$859 NZD
Retailer 11$947 NZD
Retailer 1$1,030 NZD
Retailer 4$1,456 NZD

19 data points across 11 retailers

12 retailers$626 NZD to $1,633 NZD

Retailer 1
-
$626 NZD
$353 USD
Price last confirmed 51 days ago
A
Retailer 2
-
$626 NZD
$353 USD
View
Retailer 3
-
$655 NZD
$369 USD
View
Price last confirmed 77 days ago
A
Retailer 4
-
$699 NZD
$394 USD
View
Retailer 5
-
$845 NZD
$476 USD
View
Price last confirmed 55 days ago
Retailer 6
-
$845 NZD
$476 USD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$859 NZD
$484 USD
View
B+
Retailer 8
-
$1,030 NZD
€553 EUR
View
B
Retailer 9
-
$1,456 NZD
£646 GBP
View
B
Retailer 10
-
$1,633 NZD
£725 GBP
View
Retailer 11
-
$2,402 NZD
$1,354 USD
View
Price last confirmed 56 days ago
Most Expensive
NZ Jewellers
76d7d3a2-0958-4de3-b214-033660479c21 · Sep 24
$2,402 NZD
$1,354 USD
View
Price last confirmed 38 days ago
11 more retailers have this diamond
Prices start from $626 NZDSave up to $1,007 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
0.39ct Round
$626 NZD