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Round|Natural|GIA

0.40ct J SI1 Round Natural Diamond

GD • J/SI1 • GIA 1353927431

Certificate GIA 1353927431

Diamond specifications and retailer prices

From $253 AUD
₹16,907 INR
As of October 31, 2026
Save $1,397 AUD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,650 AUD 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 standard cut grade and certified by GIA 1353927431. Listed at 18 retailers as of October 30, 2026, with prices from $253 to $1,650, a $1,397 spread on the same certified stone. NZ Jewellers lists it at $1,650. 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
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle33.5°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 1353927431
Dimensions4.76 × 4.75 × 2.83 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
4.76 mm4.75 mm0.40 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1353927431
Side View
Table 63.0%Crown 33.5°Girdle: THN-THKPavilion 40.4°Culet: NoneDepth 59.4%

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 31
Current: $253 AUD|Low: $252 AUD|High: $852 AUD|Avg: $573 AUD|-4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 1$253 AUD
Retailer 6$377 AUD
Retailer 3$565 AUD
Retailer 2$567 AUD
Retailer 8$583 AUD
Retailer 7$619 AUD
Retailer 4$739 AUD
Retailer 5$846 AUD

30 data points across 8 retailers

18 retailers$253 AUD to $1,650 AUD

A
Cheapest Retailer
-
$253 AUD
₹16,907 INR
B+
Retailer 2
-
$310 AUD
HK$1,700 HKD
View
B+
Retailer 3
-
$364 AUD
$256 USD
View
Retailer 4
-
$377 AUD
$265 USD
View
Price last confirmed 10 days ago
B+
Retailer 5
-
$387 AUD
SGD 367 SGD
View
B+
Retailer 6
-
$391 AUD
$275 USD
View
B+
Retailer 7
-
$406 AUD
$285 USD
View
B+
Retailer 8
-
$409 AUD
$287 USD
View
B+
Retailer 9
-
$490 AUD
$344 USD
View
B+
Retailer 10
-
$550 AUD
$386 USD
View
B+
Retailer 11
-
$565 AUD
ZAR 6,407 ZAR
View
B+
Retailer 12
-
$567 AUD
£314 GBP
View
Retailer 13
-
$583 AUD
View
Price last confirmed 27 days ago
B+
Retailer 14
-
$592 AUD
$416 USD
View
B
Retailer 15
-
$739 AUD
£409 GBP
View
B
Retailer 16
-
$846 AUD
£468 GBP
View
B
Retailer 17
-
$852 AUD
£471 GBP
View
Most Expensive
C
NZ Jewellers
15499dae-8135-43d7-9b18-feb88052580d · Oct 30
$1,650 AUD
$1,159 USD
View
17 more retailers have this diamond
Prices start from $253 AUDSave up to $1,397 AUD

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
$253 AUD