CaratHunter
Plans
Emerald|Natural|GIA

1.21ct J SI1 Emerald Natural Diamond

EX • J/SI1 • GIA 5221247953

Certificate GIA 5221247953

Diamond specifications and retailer prices

From £2,452 GBP
As of November 6, 2026
Save £845 GBP (26%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,505 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural emerald diamond

This 1.21ct natural emerald sits in the classic one-carat band, graded J 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 5221247953. Listed at 10 retailers as of November 5, 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

1.21
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5221247953
Dimensions7.64 × 4.91 × 3.14 mm
L/W Ratio1.56
Culet sizeNone
Key to symbols
Feather, Indented Natural
Top View
7.64 mm4.91 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5221247953
Side View
Table 63.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,505 GBP|Low: £2,337 GBP|High: £4,571 GBP|Avg: £3,010 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9£2,452 GBP
Retailer 4£2,549 GBP
Retailer 8£2,649 GBP
Retailer 6£2,762 GBP
Retailer 7£2,805 GBP
Retailer 5£2,892 GBP
Retailer 10£3,063 GBP
Retailer 2£3,144 GBP
Retailer 3£3,297 GBP
MOH London£4,505 GBP

34 data points across 10 retailers

10 retailers£2,452 GBP to £3,297 GBP

B
Cheapest Retailer
-
£2,452 GBP
B
Retailer 2
-
£2,549 GBP
View
Final sale: no returns
B
Retailer 3
-
£2,649 GBP
View
Retailer 4
-
£2,762 GBP
View
Price last confirmed 36 days ago
B
Retailer 5
-
£2,805 GBP
View
Retailer 6
-
£2,869 GBP
View
Price last confirmed 38 days ago
Retailer 7
-
£2,892 GBP
View
Price last confirmed 29 days ago
B
Retailer 8
-
£3,144 GBP
View
B
Retailer 9
-
£3,297 GBP
View
Most Expensive
MOH London
BD4F7B0BA · Nov 4
£4,505 GBP
View
Price under review
9 more retailers have this diamond
Prices start from £2,452 GBPSave up to £845 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
1.21ct Emerald
£2,452 GBP