Emerald|Natural|GIA

0.40ct G SI1 Emerald Natural Diamond

GD • G/SI1 • GIA 1425555970

Certificate GIA 1425555970

Diamond specifications and retailer prices

From £334 GBP
$447 USD
As of October 29, 2026
Save £281 GBP (46%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £960 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.4ct natural emerald diamond

This 0.4ct natural emerald sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1425555970. Listed at 11 retailers as of October 29, 2026, with a 84% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1425555970
Dimensions4.89 × 3.58 × 2.39 mm
L/W Ratio1.37
Culet sizeNone
Top View
4.89 mm3.58 mm0.40 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1425555970
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.7%

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 29
Current: £960 GBP|Low: £334 GBP|High: £966 GBP|Avg: £532 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9£334 GBP
Retailer 4£373 GBP
Retailer 6£417 GBP
Retailer 3£443 GBP
Retailer 8£475 GBP
Retailer 7£585 GBP
Retailer 2£614 GBP
Retailer 5£622 GBP
MOH London£960 GBP

44 data points across 9 retailers

11 retailers£334 GBP to £614 GBP

B+
Cheapest Retailer
-
£334 GBP
$447 USD
B
Retailer 2
-
£373 GBP
$500 USD
View
B
Retailer 3
-
£417 GBP
$559 USD
View
B
Retailer 4
-
£443 GBP
View
B
Retailer 5
-
£448 GBP
$600 USD
View
B
Retailer 6
-
£448 GBP
$600 USD
View
B
Retailer 7
-
£463 GBP
$620 USD
View
Retailer 8
-
£585 GBP
View
Price last confirmed 34 days ago
B
Retailer 9
-
£614 GBP
€784 EUR
View
Retailer 10
-
£622 GBP
A$1,281 AUD
View
Price last confirmed 27 days ago
Most Expensive
MOH London
E0CD1C750 · Oct 29
£960 GBP
View
Price under review
10 more retailers have this diamond
Prices start from £334 GBPSave up to £281 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 Emerald
£334 GBP