Round|Natural|GIA

0.40ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 7383204720

Certificate GIA 7383204720

Diamond specifications and retailer prices

From $243 USD
HK$1,900 HKD
As of October 30, 2026
Save $1,022 USD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,265 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural round diamond

This 0.4ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 7383204720. Listed at 18 retailers as of October 30, 2026, with prices from $243 to $1,265, a $1,022 spread on the same certified stone. NZ Jewellers lists it at $1,265. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.40
Carat
J
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle32.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7383204720
Dimensions4.74 × 4.68 × 2.90 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Top View
4.74 mm4.68 mm0.40 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7383204720
Side View
Table 59.0%Crown 32.5°Girdle: THN-THKPavilion 41.4°Culet: NoneDepth 61.6%

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: Oct 30
Current: $433 USD|Low: $243 USD|High: $653 USD|Avg: $397 USD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 4$243 USD
Retailer 8$290 USD
Retailer 12$295 USD
Retailer 10$344 USD
Retailer 9$345 USD
Retailer 5$353 USD
Retailer 3$377 USD
Retailer 1$433 USD
Retailer 11$447 USD
Retailer 7$474 USD
Retailer 2$482 USD
Retailer 6$649 USD

44 data points across 12 retailers

18 retailers$243 USD to $1,265 USD

A
Cheapest Retailer
-
$243 USD
HK$1,900 HKD
B+
Retailer 2
-
$279 USD
View
Retailer 3
-
$290 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$297 USD
SGD 402 SGD
View
B+
Retailer 5
-
$301 USD
View
B+
Retailer 6
-
$312 USD
View
B+
Retailer 7
-
$344 USD
View
B+
Retailer 8
-
$345 USD
View
B+
Retailer 9
-
$353 USD
£278 GBP
View
B+
Retailer 10
-
$376 USD
View
B+
Retailer 11
-
$377 USD
View
B+
Retailer 12
-
$410 USD
View
B+
Retailer 13
-
$433 USD
ZAR 6,996 ZAR
View
Retailer 14
-
$447 USD
A$688 AUD
View
Price last confirmed 26 days ago
B+
Retailer 15
-
$474 USD
€451 EUR
View
B
Retailer 16
-
$482 USD
View
B
Retailer 17
-
$649 USD
£511 GBP
View
Most Expensive
C
NZ Jewellers
2a665f7e-3b1f-4e63-9573-ba74aa8ed566 · Oct 30
$1,265 USD
View
17 more retailers have this diamond
Prices start from $243 USDSave up to $1,022 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
0.40ct Round
$243 USD