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Emerald|Natural|GIA

1.20ct I SI1 Emerald Natural Diamond

EX • I/SI1 • GIA 1559142928

Certificate GIA 1559142928

Diamond specifications and retailer prices

From £1,465 GBP
$1,966 USD
As of November 1, 2026
Save £1,376 GBP (48%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,572 GBP at NZ Jewellers · As of October 20, 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 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 1559142928. Listed at 17 retailers as of November 1, 2026, with a 94% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.47°
OriginNatural
Grading LabGIA
CertificateGIA 1559142928
Dimensions7.11 × 5.05 × 3.39 mm
L/W Ratio1.41
Key to symbols
Feather, Crystal, Needle
Top View
7.11 mm5.05 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559142928
Side View
Table 65.0%Crown 49.47°Girdle: Sli. ThickPavilionCulet: NDepth 67.0%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £3,572 GBP|Low: £1,465 GBP|High: £3,572 GBP|Avg: £2,013 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 13£1,465 GBP
Retailer 3£1,497 GBP
Retailer 11£1,546 GBP
Retailer 2£1,582 GBP
Retailer 12£1,627 GBP
Retailer 4£1,699 GBP
Retailer 6£1,708 GBP
Retailer 14£1,725 GBP
Retailer 8£1,779 GBP
Retailer 10£1,993 GBP
Retailer 5£2,021 GBP
Retailer 7£2,025 GBP
Retailer 9£2,841 GBP
NZ Jewellers£3,572 GBP

24 data points across 14 retailers

17 retailers£1,465 GBP to £2,841 GBP

A
Cheapest Retailer
-
£1,465 GBP
$1,966 USD
A
Retailer 2
-
£1,497 GBP
$2,009 USD
View
Final sale: no returns
A
Retailer 3
-
£1,546 GBP
$2,075 USD
View
A
Retailer 4
-
£1,582 GBP
View
A
Retailer 5
-
£1,627 GBP
$2,183 USD
View
B+
Retailer 6
-
£1,699 GBP
$2,280 USD
View
Retailer 7
-
£1,708 GBP
$2,292 USD
View
Price last confirmed 13 days ago
B+
Retailer 8
-
£1,725 GBP
$2,315 USD
View
B+
Retailer 9
-
£1,779 GBP
View
Retailer 10
-
£1,838 GBP
$2,466 USD
View
Price last confirmed 17 days ago
Retailer 11
-
£1,923 GBP
$2,580 USD
View
Price last confirmed 16 days ago
B+
Retailer 12
-
£1,993 GBP
ZAR 43,215 ZAR
View
Retailer 13
-
£2,021 GBP
$2,712 USD
View
Price last confirmed 12 days ago
B+
Retailer 14
-
£2,025 GBP
€2,588 EUR
View
Retailer 15
-
£2,156 GBP
A$4,452 AUD
View
Price last confirmed 25 days ago
B
Retailer 16
-
£2,841 GBP
View
Most Expensive
NZ Jewellers
88109e97-2ee4-4a53-b833-ed66e440cceb · Oct 20
£3,572 GBP
$4,793 USD
View
Price last confirmed 12 days ago
16 more retailers have this diamond
Prices start from £1,465 GBPSave up to £1,376 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
1.20ct Emerald
£1,465 GBP