Emerald|Natural|GIA

1.21ct J SI1 Emerald Natural Diamond

EX • J/SI1 • GIA 2537871496

Certificate GIA 2537871496

Diamond specifications and retailer prices

From £808 GBP
As of November 3, 2026
Save £1,101 GBP (58%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,369 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

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 2537871496. Listed at 8 retailers as of November 2, 2026, with a 136% 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2537871496
Dimensions7.07 × 5.05 × 3.40 mm
L/W Ratio1.40
Top View
7.07 mm5.05 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2537871496
Side View
Table 64.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: £3,369 GBP|Low: £805 GBP|High: £3,369 GBP|Avg: £1,733 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 4, 2026
Retailer 3£808 GBP
Retailer 4£1,161 GBP
Retailer 2£1,237 GBP
Retailer 7£1,337 GBP
Retailer 8£1,366 GBP
Retailer 10£1,620 GBP
Retailer 6£1,767 GBP
Retailer 9£1,788 GBP
Retailer 5£1,909 GBP
NZ Jewellers£3,369 GBP

36 data points across 10 retailers

8 retailers£808 GBP to £1,909 GBP

A
Cheapest Retailer
-
£808 GBP
A
Retailer 2
-
£1,161 GBP
View
B+
Retailer 3
-
£1,237 GBP
View
Retailer 4
-
£1,337 GBP
View
Price last confirmed 42 days ago
B+
Retailer 5
-
£1,366 GBP
View
Retailer 6
-
£1,767 GBP
View
Price last confirmed 32 days ago
B
Retailer 7
-
£1,909 GBP
View
Most Expensive
NZ Jewellers
c013de27-0c33-4c1f-a396-6d6e98e06e00 · Sep 25
£3,369 GBP
$4,535 USD
View
Price last confirmed 42 days ago
7 more retailers have this diamond
Prices start from £808 GBPSave up to £1,101 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.

A
1.21ct Emerald
£808 GBP