Emerald|Natural|GIA

1.20ct J SI1 Emerald Natural Diamond

ID • J/SI1 • GIA 3455615670

Certificate GIA 3455615670

Diamond specifications and retailer prices

From £1,592 GBP
$2,133 USD
As of October 30, 2026
Save £1,834 GBP (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,312 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.2ct natural emerald diamond

This 1.2ct 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 3455615670. Listed at 17 retailers as of October 29, 2026, with a 115% 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

1.20
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3455615670
Dimensions6.81 × 5.08 × 3.45 mm
L/W Ratio1.34
Top View
6.81 mm5.08 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 3455615670
Side View
Table 61.0%CrownGirdle: VTK-EXTPavilionCulet: NoneDepth 68.0%

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 30
Current: £2,391 GBP|Low: £1,592 GBP|High: £3,658 GBP|Avg: £2,190 GBP|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 2£1,592 GBP
Retailer 11£1,626 GBP
Retailer 10£1,665 GBP
Retailer 8£1,758 GBP
Retailer 9£1,798 GBP
Retailer 12£1,858 GBP
Retailer 4£1,866 GBP
Retailer 5£2,079 GBP
Retailer 3£2,311 GBP
Retailer 1£2,391 GBP
Retailer 6£2,429 GBP
Retailer 7£3,425 GBP

41 data points across 12 retailers

17 retailers£1,592 GBP to £3,425 GBP

B+
Cheapest Retailer
-
£1,592 GBP
$2,133 USD
B+
Retailer 2
-
£1,626 GBP
$2,179 USD
View
Final sale: no returns
B
Retailer 3
-
£1,665 GBP
$2,231 USD
View
B
Retailer 4
-
£1,758 GBP
$2,355 USD
View
B
Retailer 5
-
£1,798 GBP
$2,409 USD
View
B
Retailer 6
-
£1,858 GBP
$2,490 USD
View
B
Retailer 7
-
£1,866 GBP
$2,500 USD
View
Retailer 8
-
£1,869 GBP
$2,504 USD
View
Price last confirmed 24 days ago
Retailer 9
-
£1,869 GBP
$2,504 USD
View
Price last confirmed 24 days ago
Retailer 10
-
£1,955 GBP
$2,619 USD
View
Price last confirmed 32 days ago
B
Retailer 11
-
£2,079 GBP
View
Retailer 12
-
£2,156 GBP
$2,889 USD
View
Price last confirmed 33 days ago
Retailer 13
-
£2,311 GBP
A$4,764 AUD
View
Price last confirmed 24 days ago
B
Retailer 14
-
£2,391 GBP
ZAR 51,750 ZAR
View
B
Retailer 15
-
£2,429 GBP
€3,100 EUR
View
B
Retailer 16
-
£3,425 GBP
View
Most Expensive
NZ Jewellers
72a32d6e-18f2-4f2f-8e46-5d5f18a4fd2f · Sep 30
£4,312 GBP
$5,778 USD
View
Price under review
16 more retailers have this diamond
Prices start from £1,592 GBPSave up to £1,834 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+
1.20ct Emerald
£1,592 GBP