Emerald|Natural|GIA

0.40ct F SI1 Emerald Natural Diamond

GD • F/SI1 • GIA 6412851754

Certificate GIA 6412851754

Diamond specifications and retailer prices

From £325 GBP
$435 USD
As of November 1, 2026
Save £286 GBP (47%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £910 GBP at MOH London · As of November 1, 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 F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6412851754. Listed at 21 retailers as of October 30, 2026, with a 88% 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
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6412851754
Dimensions4.92 × 3.42 × 2.34 mm
L/W Ratio1.44
Top View
4.92 mm3.42 mm0.40 ctF / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6412851754
Side View
Table 69.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 68.4%

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: Nov 1
Current: £910 GBP|Low: £325 GBP|High: £1,235 GBP|Avg: £605 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 9£325 GBP
Retailer 5£357 GBP
Retailer 3£415 GBP
Retailer 13£439 GBP
Retailer 2£490 GBP
Retailer 11£511 GBP
Retailer 8£540 GBP
Retailer 6£589 GBP
Retailer 10£592 GBP
Retailer 7£611 GBP
Retailer 12£807 GBP
MOH London£910 GBP
Retailer 4£1,235 GBP

45 data points across 13 retailers

21 retailers£325 GBP to £611 GBP

B+
Cheapest Retailer
-
£325 GBP
$435 USD
B
Retailer 2
-
£357 GBP
$478 USD
View
B
Retailer 3
-
£362 GBP
$485 USD
View
B
Retailer 4
-
£376 GBP
$504 USD
View
B
Retailer 5
-
£384 GBP
$515 USD
View
B
Retailer 6
-
£384 GBP
$515 USD
View
B
Retailer 7
-
£412 GBP
$552 USD
View
B
Retailer 8
-
£415 GBP
$556 USD
View
B
Retailer 9
-
£443 GBP
$594 USD
View
B
Retailer 10
-
£463 GBP
$620 USD
View
B
Retailer 11
-
£463 GBP
$620 USD
View
B
Retailer 12
-
£478 GBP
$640 USD
View
B
Retailer 13
-
£490 GBP
View
C
Retailer 14
-
£511 GBP
$685 USD
View
B
Retailer 15
-
£540 GBP
View
C
Retailer 16
-
£589 GBP
€751 EUR
View
Retailer 17
-
£592 GBP
A$1,221 AUD
View
Price last confirmed 28 days ago
B
Retailer 18
-
£611 GBP
ZAR 13,224 ZAR
View
Retailer 19
-
£807 GBP
View
Price last confirmed 33 days ago
Most Expensive
MOH London
9ECE754B1 · Nov 1
£910 GBP
View
Price under review
19 more retailers have this diamond
Prices start from £325 GBPSave up to £286 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
£325 GBP