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Round|Natural|GIA

0.40ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 7383204720

Certificate GIA 7383204720

Diamond specifications and retailer prices

From $432 NZD
HK$1,900 HKD
As of October 30, 2026
Save $1,813 NZD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,244 NZD 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 $432 to $2,244, a $1,813 spread on the same certified stone. NZ Jewellers lists it at $2,244. 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
Colour
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: $1,145 NZD|Low: $432 NZD|High: $1,158 NZD|Avg: $706 NZD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 4$432 NZD
Retailer 8$515 NZD
Retailer 12$523 NZD
Retailer 10$610 NZD
Retailer 9$612 NZD
Retailer 5$627 NZD
Retailer 3$670 NZD
Retailer 7$768 NZD
Retailer 11$794 NZD
Retailer 6$842 NZD
Retailer 2$855 NZD
Retailer 1$1,145 NZD

44 data points across 12 retailers

18 retailers$432 NZD to $2,244 NZD

A
Cheapest Retailer
-
$432 NZD
HK$1,900 HKD
B+
Retailer 2
-
$495 NZD
$279 USD
View
Retailer 3
-
$515 NZD
$290 USD
View
Price last confirmed 11 days ago
B+
Retailer 4
-
$528 NZD
SGD 402 SGD
View
B+
Retailer 5
-
$534 NZD
$301 USD
View
B+
Retailer 6
-
$554 NZD
$312 USD
View
B+
Retailer 7
-
$610 NZD
$344 USD
View
B+
Retailer 8
-
$612 NZD
$345 USD
View
B+
Retailer 9
-
$627 NZD
£278 GBP
View
B+
Retailer 10
-
$667 NZD
$376 USD
View
B+
Retailer 11
-
$670 NZD
$377 USD
View
B+
Retailer 12
-
$727 NZD
$410 USD
View
B+
Retailer 13
-
$768 NZD
ZAR 6,996 ZAR
View
Retailer 14
-
$794 NZD
A$688 AUD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
$842 NZD
€452 EUR
View
B
Retailer 16
-
$855 NZD
$482 USD
View
B
Retailer 17
-
$1,145 NZD
£508 GBP
View
Most Expensive
C
NZ Jewellers
2a665f7e-3b1f-4e63-9573-ba74aa8ed566 · Oct 30
$2,244 NZD
$1,265 USD
View
17 more retailers have this diamond
Prices start from $432 NZDSave up to $1,813 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
0.40ct Round
$432 NZD