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Emerald|Natural|GIA

1.00ct J SI1 Emerald Natural Diamond

ID • J/SI1 • GIA 1539123559

Certificate GIA 1539123559

Diamond specifications and retailer prices

From £2,252 GBP
$3,018 USD
As of October 28, 2026
Save £836 GBP (27%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,213 GBP at Cape Diamonds · As of October 26, 2026
View at Cape Diamonds

About this 1ct natural emerald diamond

This 1ct 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 1539123559. Listed at 16 retailers as of October 28, 2026, with a 37% 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

1.00
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1539123559
Dimensions6.77 × 4.74 × 3.18 mm
L/W Ratio1.43
Girdle conditionVery Thick
Key to symbols
Cloud, Crystal, Needle
Top View
6.77 mm4.74 mm1.00 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1539123559
Side View
Table 56.0%CrownGirdle: Very ThickPavilionCulet: NDepth 67.1%

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: Oct 28
Current: £3,213 GBP|Low: £2,252 GBP|High: £4,465 GBP|Avg: £2,837 GBP|+1.2%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 8£2,252 GBP
Retailer 6£2,388 GBP
Retailer 10£2,502 GBP
Retailer 7£2,538 GBP
Retailer 9£2,638 GBP
Retailer 3£2,757 GBP
Retailer 5£2,826 GBP
Retailer 2£3,088 GBP
Cape Diamonds£3,213 GBP
Retailer 4£4,436 GBP

44 data points across 10 retailers

16 retailers£2,252 GBP to £3,088 GBP

B
Cheapest Retailer
-
£2,252 GBP
$3,018 USD
B
Retailer 2
-
£2,342 GBP
$3,138 USD
View
B
Retailer 3
-
£2,388 GBP
$3,199 USD
View
B
Retailer 4
-
£2,502 GBP
A$5,158 AUD
View
B
Retailer 5
-
£2,538 GBP
$3,400 USD
View
B
Retailer 6
-
£2,638 GBP
$3,535 USD
View
B
Retailer 7
-
£2,638 GBP
$3,535 USD
View
B
Retailer 8
-
£2,740 GBP
$3,671 USD
View
B
Retailer 9
-
£2,747 GBP
$3,680 USD
View
B
Retailer 10
-
£2,757 GBP
View
Retailer 11
-
£2,826 GBP
A$5,826 AUD
View
Price last confirmed 22 days ago
B
Retailer 12
-
£3,044 GBP
$4,079 USD
View
B
Retailer 13
-
£3,088 GBP
€3,941 EUR
View
Most Expensive
Cape Diamonds
cert_1539123559 · Oct 26
£3,213 GBP
ZAR 69,543 ZAR
View
Price under review
13 more retailers have this diamond
Prices start from £2,252 GBPSave up to £836 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
1.00ct Emerald
£2,252 GBP