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 $353 USD
As of October 28, 2026
Save $568 USD (62%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,354 USD 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
Color
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

How it works →
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: $581 USD|Low: $368 USD|High: $826 USD|Avg: $469 USD|+3.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 8$368 USD
Retailer 7$369 USD
Retailer 4$381 USD
Retailer 3$382 USD
Retailer 5$484 USD
Retailer 6$533 USD
Retailer 1$581 USD
Retailer 2$820 USD

20 data points across 8 retailers

12 retailers$353 USD to $921 USD

Retailer 1
-
$353 USD
Price last confirmed 50 days ago
A
Retailer 2
-
$353 USD
View
Retailer 3
-
$369 USD
View
Price last confirmed 75 days ago
A
Retailer 4
-
$394 USD
View
Retailer 5
-
$476 USD
View
Price last confirmed 53 days ago
Retailer 6
-
$476 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
$484 USD
View
B+
Retailer 8
-
$581 USD
€553 EUR
View
B
Retailer 9
-
$820 USD
£646 GBP
View
B
Retailer 10
-
$921 USD
£725 GBP
View
Retailer 11
-
$1,354 USD
View
Price last confirmed 54 days ago
Most Expensive
NZ Jewellers
76d7d3a2-0958-4de3-b214-033660479c21 · Sep 24
$1,354 USD
View
Price last confirmed 36 days ago
11 more retailers have this diamond
Prices start from $353 USDSave up to $568 USD

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
$353 USD