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Emerald|Natural|GIA

1.00ct K SI1 Emerald Natural Diamond

EX • K/SI1 • GIA 2557438503

Certificate GIA 2557438503

Diamond specifications and retailer prices

From £822 GBP
As of November 5, 2026
Save £1,099 GBP (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,921 GBP at MOH London · As of November 4, 2026
View at MOH London

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 2557438503. Listed at 9 retailers as of November 4, 2026, with prices from £822 to £1,921, a £1,099 spread on the same certified stone. MOH London lists it at £1,921. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557438503
Dimensions6.49 × 4.73 × 3.30 mm
L/W Ratio1.37
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.49 mm4.73 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557438503
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.7%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: £1,921 GBP|Low: £822 GBP|High: £1,949 GBP|Avg: £1,340 GBP|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4£822 GBP
Retailer 6£1,100 GBP
Retailer 3£1,214 GBP
Retailer 5£1,342 GBP
Retailer 2£1,522 GBP
MOH London£1,921 GBP

40 data points across 6 retailers

9 retailers£822 GBP to £1,921 GBP

A
Cheapest Retailer
-
£822 GBP
B+
Retailer 2
-
£1,019 GBP
View
Retailer 3
-
£1,100 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£1,120 GBP
View
B+
Retailer 5
-
£1,200 GBP
View
B+
Retailer 6
-
£1,214 GBP
View
B
Retailer 7
-
£1,342 GBP
View
B
Retailer 8
-
£1,522 GBP
View
Most Expensive
B
MOH London
7E5AD6E70 · Nov 4
£1,921 GBP
View
8 more retailers have this diamond
Prices start from £822 GBPSave up to £1,099 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
£822 GBP