Emerald|Natural|GIA

1.00ct K SI1 Emerald Natural Diamond

EX • K/SI1 • GIA 2566053259

Certificate GIA 2566053259

Diamond specifications and retailer prices

From £637 GBP
As of November 4, 2026
Save £556 GBP (47%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,222 GBP at NZ Jewellers · As of October 14, 2026
View at NZ Jewellers

About this 1ct natural emerald diamond

This 1ct natural emerald sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566053259. Listed at 16 retailers as of November 4, 2026, with a 87% 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566053259
Dimensions5.97 × 4.58 × 3.72 mm
L/W Ratio1.30
Top View
5.97 mm4.58 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566053259
Side View
Table 69.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 81.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £831 GBP|Low: £637 GBP|High: £1,356 GBP|Avg: £963 GBP|-10.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8£637 GBP
Retailer 2£802 GBP
Retailer 7£821 GBP
Retailer 1£831 GBP
Retailer 9£847 GBP
Retailer 10£884 GBP
Retailer 4£886 GBP
Retailer 3£956 GBP
Retailer 6£1,045 GBP
Retailer 5£1,192 GBP

36 data points across 10 retailers

16 retailers£637 GBP to £1,192 GBP

A
Cheapest Retailer
-
£637 GBP
A
Retailer 2
-
£802 GBP
View
A
Retailer 3
-
£821 GBP
View
A
Retailer 4
-
£831 GBP
View
A
Retailer 5
-
£847 GBP
View
Retailer 6
-
£884 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£886 GBP
View
Retailer 8
-
£911 GBP
View
Price last confirmed 23 days ago
Retailer 9
-
£911 GBP
View
Price last confirmed 21 days ago
A
Retailer 10
-
£956 GBP
View
Retailer 11
-
£1,002 GBP
View
Price last confirmed 38 days ago
B+
Retailer 12
-
£1,045 GBP
View
Retailer 13
-
£1,051 GBP
View
Price last confirmed 21 days ago
B+
Retailer 14
-
£1,192 GBP
View
Retailer 15
-
£1,207 GBP
View
Price last confirmed 59 days ago
Most Expensive
NZ Jewellers
9b3e4d14-af53-4064-b618-12ef98d2599f · Oct 14
£2,222 GBP
$2,990 USD
View
Price last confirmed 23 days ago
15 more retailers have this diamond
Prices start from £637 GBPSave up to £556 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
1.00ct Emerald
£637 GBP