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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 $228 SGD
₹16,966 INR
As of October 30, 2026
Save $1,254 SGD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,482 SGD 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 $228 to $1,482, a $1,254 spread on the same certified stone. NZ Jewellers lists it at $1,482. 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 30
Current: $509 SGD|Low: $226 SGD|High: $765 SGD|Avg: $513 SGD|+5.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 2$228 SGD
Retailer 6$339 SGD
Retailer 3$507 SGD
Retailer 1$509 SGD
Retailer 8$524 SGD
Retailer 7$556 SGD
Retailer 4$664 SGD
Retailer 5$760 SGD

30 data points across 8 retailers

18 retailers$228 SGD to $1,482 SGD

A
Cheapest Retailer
-
$228 SGD
₹16,966 INR
B+
Retailer 2
-
$278 SGD
HK$1,700 HKD
View
B+
Retailer 3
-
$327 SGD
$256 USD
View
Retailer 4
-
$339 SGD
$265 USD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$347 SGD
View
B+
Retailer 6
-
$352 SGD
$275 USD
View
B+
Retailer 7
-
$364 SGD
$285 USD
View
B+
Retailer 8
-
$367 SGD
$287 USD
View
B+
Retailer 9
-
$440 SGD
$344 USD
View
B+
Retailer 10
-
$494 SGD
$386 USD
View
B+
Retailer 11
-
$507 SGD
ZAR 6,407 ZAR
View
B+
Retailer 12
-
$509 SGD
£314 GBP
View
Retailer 13
-
$524 SGD
A$630 AUD
View
Price last confirmed 27 days ago
B+
Retailer 14
-
$532 SGD
$416 USD
View
B
Retailer 15
-
$664 SGD
£409 GBP
View
B
Retailer 16
-
$760 SGD
£468 GBP
View
B
Retailer 17
-
$765 SGD
£471 GBP
View
Most Expensive
C
NZ Jewellers
15499dae-8135-43d7-9b18-feb88052580d · Oct 30
$1,482 SGD
$1,159 USD
View
17 more retailers have this diamond
Prices start from $228 SGDSave up to $1,254 SGD

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
$228 SGD