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Round|Natural|GIA

0.40ct D I1 Round Natural Diamond

VG • D/I1 • GIA 1457569840

Certificate GIA 1457569840

Diamond specifications and retailer prices

From £239 GBP
HK$2,500 HKD
As of October 30, 2026
Save £830 GBP (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,069 GBP 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 D colour (colourless) and I1 clarity (included), with a very-good cut grade and certified by GIA 1457569840. Listed at 8 retailers as of October 30, 2026, with prices from £239 to £1,069, a £830 spread on the same certified stone. NZ Jewellers lists it at £1,069. 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
D
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle37°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1457569840
Dimensions4.59 × 4.63 × 2.97 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Key to symbols
Cloud, Feather
Top View
4.59 mm4.63 mm0.40 ctD / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1457569840
Side View
Table 57.0%Crown 37°Girdle: MED-THKPavilion 41°Culet: NoneDepth 64.5%

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: £458 GBP|Low: £239 GBP|High: £458 GBP|Avg: £369 GBP|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 4£239 GBP
Retailer 2£303 GBP
Retailer 3£388 GBP
Retailer 5£416 GBP
Retailer 6£421 GBP
Retailer 1£458 GBP

20 data points across 6 retailers

8 retailers£239 GBP to £1,069 GBP

A
Cheapest Retailer
-
£239 GBP
HK$2,500 HKD
B+
Retailer 2
-
£279 GBP
$374 USD
View
B+
Retailer 3
-
£300 GBP
$402 USD
View
B+
Retailer 4
-
£311 GBP
$417 USD
View
B
Retailer 5
-
£375 GBP
$503 USD
View
B
Retailer 6
-
£388 GBP
$520 USD
View
B
Retailer 7
-
£458 GBP
€584 EUR
View
Most Expensive
C
NZ Jewellers
3b633c78-52ef-4475-82fb-ee4dff07d4f0 · Oct 30
£1,069 GBP
$1,432 USD
View
7 more retailers have this diamond
Prices start from £239 GBPSave up to £830 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.

A
0.40ct Round
£239 GBP