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Emerald|Natural|GIA

0.40ct F SI2 Emerald Natural Diamond

EX • F/SI2 • GIA 7558148910

Certificate GIA 7558148910

Diamond specifications and retailer prices

From £399 GBP
€509 EUR
As of October 31, 2026
Save £137 GBP (26%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £889 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural emerald diamond

This 0.4ct natural emerald sits in the sub-half-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558148910. Listed at 4 retailers as of October 31, 2026, with a 34% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558148910
Dimensions5.05 × 3.49 × 2.30 mm
L/W Ratio1.45
Culet sizeNone
Key to symbols
Knot
Top View
5.05 mm3.49 mm0.40 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558148910
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.8%

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: £889 GBP|Low: £301 GBP|High: £893 GBP|Avg: £496 GBP|+0.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 5£301 GBP
Retailer 6£377 GBP
Retailer 4£399 GBP
Retailer 2£469 GBP
Retailer 3£536 GBP
NZ Jewellers£889 GBP

32 data points across 6 retailers

4 retailers£399 GBP to £536 GBP

B+
Cheapest Retailer
-
£399 GBP
€509 EUR
B
Retailer 2
-
£469 GBP
View
B
Retailer 3
-
£536 GBP
View
Most Expensive
NZ Jewellers
5f90ea7f-c9f3-4ef4-b228-d3096d158e94 · Oct 30
£889 GBP
$1,191 USD
View
Price under review
3 more retailers have this diamond
Prices start from £399 GBPSave up to £137 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
£399 GBP