Round|Natural|GIA

0.40ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 3445367088

Certificate GIA 3445367088

Diamond specifications and retailer prices

From $272 USD
₹25,920 INR
As of October 30, 2026
Save $1,091 USD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,363 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 top-tier cut grade and certified by GIA 3445367088. Listed at 17 retailers as of October 30, 2026, with prices from $272 to $1,363, a $1,091 spread on the same certified stone. NZ Jewellers lists it at $1,363. 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

0.40
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3445367088
Dimensions4.78 × 4.73 × 2.88 mm
L/W Ratio1.01
Top View
4.78 mm4.73 mm0.40 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3445367088
Side View
Table 59.0%CrownGirdle: Sli. ThickPavilionCulet: NoneDepth 60.6%

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: $1,363 USD|Low: $272 USD|High: $1,386 USD|Avg: $507 USD|-1.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 16$272 USD
Retailer 9$307 USD
Retailer 10$309 USD
Retailer 8$320 USD
Retailer 5$356 USD
Retailer 7$374 USD
Retailer 17$383 USD
Retailer 11$391 USD
Retailer 18$397 USD
Retailer 2$455 USD
Retailer 6$479 USD
Retailer 3$486 USD
Retailer 19$519 USD
Retailer 12$551 USD
Retailer 4$575 USD
Retailer 14$658 USD
Retailer 13$722 USD
Retailer 15$826 USD
NZ Jewellers$1,363 USD

28 data points across 19 retailers

17 retailers$272 USD to $1,363 USD

A
Cheapest Retailer
-
$272 USD
₹25,920 INR
A
Retailer 2
-
$307 USD
HK$2,400 HKD
View
A
Retailer 3
-
$320 USD
View
A
Retailer 4
-
$356 USD
View
B+
Retailer 5
-
$374 USD
SGD 505 SGD
View
B+
Retailer 6
-
$383 USD
View
B+
Retailer 7
-
$397 USD
View
B+
Retailer 8
-
$455 USD
£358 GBP
View
B+
Retailer 9
-
$479 USD
View
B+
Retailer 10
-
$486 USD
View
B
Retailer 11
-
$519 USD
View
B
Retailer 12
-
$551 USD
ZAR 8,907 ZAR
View
B+
Retailer 13
-
$575 USD
View
B
Retailer 14
-
$658 USD
€627 EUR
View
B
Retailer 15
-
$722 USD
£568 GBP
View
B
Retailer 16
-
$826 USD
£650 GBP
View
Most Expensive
B
NZ Jewellers
837e0557-6dc9-485c-8101-bff006d4beec · Oct 30
$1,363 USD
View
16 more retailers have this diamond
Prices start from $272 USDSave up to $1,091 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
$272 USD