Emerald|Natural|GIA

0.40ct I SI1 Emerald Natural Diamond

EX • I/SI1 • GIA 1497062943

Certificate GIA 1497062943

Diamond specifications and retailer prices

From £281 GBP
$376 USD
As of October 31, 2026
Save £434 GBP (61%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £817 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1497062943. Listed at 20 retailers as of October 30, 2026, with a 155% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1497062943
Dimensions4.93 × 3.51 × 2.43 mm
L/W Ratio1.40
Culet sizeNone
Top View
4.93 mm3.51 mm0.40 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1497062943
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.1%

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: £817 GBP|Low: £321 GBP|High: £823 GBP|Avg: £515 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 6£321 GBP
Retailer 9£343 GBP
Retailer 10£363 GBP
Retailer 2£374 GBP
Retailer 7£478 GBP
Retailer 3£531 GBP
Retailer 4£546 GBP
Retailer 8£564 GBP
Retailer 5£715 GBP
MOH London£817 GBP

36 data points across 10 retailers

20 retailers£281 GBP to £715 GBP

B+
Cheapest Retailer
-
£281 GBP
$376 USD
B+
Retailer 2
-
£319 GBP
$427 USD
View
B+
Retailer 3
-
£321 GBP
$430 USD
View
B+
Retailer 4
-
£343 GBP
$460 USD
View
B+
Retailer 5
-
£343 GBP
$460 USD
View
B
Retailer 6
-
£360 GBP
$482 USD
View
B
Retailer 7
-
£363 GBP
$486 USD
View
B
Retailer 8
-
£368 GBP
$493 USD
View
B
Retailer 9
-
£374 GBP
View
B
Retailer 10
-
£388 GBP
$520 USD
View
B
Retailer 11
-
£388 GBP
$520 USD
View
B
Retailer 12
-
£403 GBP
$540 USD
View
B
Retailer 13
-
£407 GBP
$545 USD
View
B
Retailer 14
-
£478 GBP
$640 USD
View
B
Retailer 15
-
£531 GBP
€677 EUR
View
B
Retailer 16
-
£546 GBP
ZAR 11,815 ZAR
View
Retailer 17
-
£564 GBP
A$1,162 AUD
View
Price last confirmed 26 days ago
B
Retailer 18
-
£715 GBP
View
Most Expensive
MOH London
24CA87E8F · Oct 29
£817 GBP
View
Price under review
18 more retailers have this diamond
Prices start from £281 GBPSave up to £434 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
£281 GBP