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Emerald|Natural|GIA

1.20ct J SI1 Emerald Natural Diamond

EX • J/SI1 • GIA 1558246528

Certificate GIA 1558246528

Diamond specifications and retailer prices

From £1,254 GBP
As of November 5, 2026
Save £1,033 GBP (45%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,288 GBP at Helzberg Diamonds · As of November 3, 2026
View at Helzberg Diamonds

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 1558246528. Listed at 18 retailers as of November 3, 2026, with prices from £1,254 to £2,288, a £1,033 spread on the same certified stone. Helzberg Diamonds lists it at £2,288. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558246528
Dimensions7.13 × 5.07 × 3.40 mm
L/W Ratio1.41
Culet sizeNone
Top View
7.13 mm5.07 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558246528
Side View
Table 70.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.1%

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 5
Current: £2,288 GBP|Low: £1,247 GBP|High: £2,382 GBP|Avg: £1,637 GBP|-4.0%
Helzberg Diamonds
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 14£1,254 GBP
Retailer 18£1,276 GBP
Retailer 3£1,277 GBP
Retailer 4£1,292 GBP
Retailer 8£1,389 GBP
Retailer 17£1,520 GBP
Retailer 6£1,531 GBP
Retailer 16£1,602 GBP
Retailer 7£1,665 GBP
Retailer 10£1,681 GBP
Retailer 15£1,794 GBP
Retailer 12£1,903 GBP
Retailer 5£1,946 GBP
Retailer 2£2,021 GBP
Retailer 13£2,021 GBP
Retailer 11£2,088 GBP
Retailer 9£2,115 GBP
Helzberg Diamonds£2,288 GBP

27 data points across 18 retailers

18 retailers£1,254 GBP to £2,288 GBP

A
Cheapest Retailer
-
£1,254 GBP
A
Retailer 2
-
£1,276 GBP
View
A
Retailer 3
-
£1,277 GBP
View
A
Retailer 4
-
£1,292 GBP
View
B+
Retailer 5
-
£1,389 GBP
View
B+
Retailer 6
-
£1,520 GBP
View
B+
Retailer 7
-
£1,531 GBP
View
B
Retailer 8
-
£1,548 GBP
View
B+
Retailer 9
-
£1,602 GBP
View
B
Retailer 10
-
£1,665 GBP
View
B+
Retailer 11
-
£1,794 GBP
View
B
Retailer 12
-
£1,903 GBP
View
B
Retailer 13
-
£1,946 GBP
View
B
Retailer 14
-
£2,021 GBP
View
B
Retailer 15
-
£2,021 GBP
View
B
Retailer 16
-
£2,088 GBP
View
B
Retailer 17
-
£2,115 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRHLLOIKMLIO · Nov 3
£2,288 GBP
$3,079 USD
View
17 more retailers have this diamond
Prices start from £1,254 GBPSave up to £1,033 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
£1,254 GBP