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Emerald|Natural|GIA

0.50ct K SI1 Emerald Natural Diamond

EX • K/SI1 • GIA 2554219583

Certificate GIA 2554219583

Diamond specifications and retailer prices

From £218 GBP
As of November 5, 2026
Save £473 GBP (68%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £691 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.5ct natural emerald diamond

This 0.5ct natural emerald sits in the half to three-quarter 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 2554219583. Listed at 6 retailers as of November 4, 2026, with prices from £218 to £691, a £473 spread on the same certified stone. MOH London lists it at £691. 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

0.50
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554219583
Dimensions5.88 × 3.62 × 2.53 mm
L/W Ratio1.62
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather
Top View
5.88 mm3.62 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554219583
Side View
Table 70.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 70.0%

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: £691 GBP|Low: £218 GBP|High: £695 GBP|Avg: £445 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3£218 GBP
Retailer 4£388 GBP
Retailer 2£481 GBP
MOH London£691 GBP

44 data points across 4 retailers

6 retailers£218 GBP to £691 GBP

A
Cheapest Retailer
-
£218 GBP
B+
Retailer 2
-
£388 GBP
View
B+
Retailer 3
-
£405 GBP
View
Retailer 4
-
£416 GBP
View
Price last confirmed 16 days ago
B
Retailer 5
-
£481 GBP
View
Most Expensive
B
MOH London
BFE904159 · Nov 4
£691 GBP
View
5 more retailers have this diamond
Prices start from £218 GBPSave up to £473 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
0.50ct Emerald
£218 GBP