Round|Natural|GIA

0.40ct J I1 Round Natural Diamond

GD • J/I1 • GIA 6295492989

Certificate GIA 6295492989

Diamond specifications and retailer prices

From £86 GBP
₹11,018 INR
As of October 31, 2026
Save £503 GBP (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £589 GBP at NZ Jewellers · As of October 26, 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 I1 clarity (included), with a standard cut grade and certified by GIA 6295492989. Listed at 11 retailers as of October 26, 2026, with prices from £86 to £589, a £503 spread on the same certified stone. NZ Jewellers lists it at £589. 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
I1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryGood
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6295492989
Dimensions4.62 × 4.66 × 2.91 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
4.62 mm4.66 mm0.40 ctJ / I1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 6295492989
Side View
Table 59.0%Crown 36°Girdle: VTN-VTKPavilion 40.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £589 GBP|Low: £86 GBP|High: £589 GBP|Avg: £228 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 2£86 GBP
Retailer 5£128 GBP
Retailer 3£140 GBP
Retailer 7£162 GBP
Retailer 6£259 GBP
Retailer 4£277 GBP
NZ Jewellers£589 GBP

42 data points across 7 retailers

11 retailers£86 GBP to £589 GBP

B+
Cheapest Retailer
-
£86 GBP
₹11,018 INR
B+
Retailer 2
-
£130 GBP
$174 USD
View
B+
Retailer 3
-
£130 GBP
$174 USD
View
B+
Retailer 4
-
£140 GBP
$188 USD
View
B+
Retailer 5
-
£145 GBP
$194 USD
View
B+
Retailer 6
-
£145 GBP
$194 USD
View
Retailer 7
-
£162 GBP
$217 USD
View
Price last confirmed 14 days ago
B+
Retailer 8
-
£175 GBP
$235 USD
View
B
Retailer 9
-
£259 GBP
$347 USD
View
B
Retailer 10
-
£277 GBP
€353 EUR
View
Most Expensive
C
NZ Jewellers
df49f8aa-11ca-4af5-a051-0245eb1efacd · Oct 26
£589 GBP
$789 USD
View
10 more retailers have this diamond
Prices start from £86 GBPSave up to £503 GBP

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.

B+
0.40ct Round
£86 GBP