Emerald|Natural|GIA

0.50ct K SI1 Emerald Natural Diamond

EX • K/SI1 • GIA 1243993258

Certificate GIA 1243993258

Diamond specifications and retailer prices

From £247 GBP
As of November 6, 2026
Save £419 GBP (63%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,107 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 1243993258. Listed at 17 retailers as of November 4, 2026, with a 170% 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

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

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1243993258
Dimensions4.78 × 3.74 × 2.85 mm
L/W Ratio1.28
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal
Top View
4.78 mm3.74 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1243993258
Side View
Table 52.0%CrownGirdle: ThickPavilionCulet: NoneDepth 76.2%

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 6
Current: £371 GBP|Low: £247 GBP|High: £675 GBP|Avg: £387 GBP|+4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£247 GBP
Retailer 7£282 GBP
Retailer 5£305 GBP
Retailer 4£314 GBP
Retailer 1£371 GBP
Retailer 8£403 GBP
Retailer 2£448 GBP
Retailer 6£450 GBP
Retailer 3£666 GBP

44 data points across 9 retailers

17 retailers£247 GBP to £666 GBP

A
Cheapest Retailer
-
£247 GBP
B+
Retailer 2
-
£282 GBP
View
B+
Retailer 3
-
£289 GBP
View
B+
Retailer 4
-
£305 GBP
View
B+
Retailer 5
-
£305 GBP
View
Retailer 6
-
£311 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£322 GBP
View
B+
Retailer 8
-
£371 GBP
View
B+
Retailer 9
-
£386 GBP
View
B
Retailer 10
-
£389 GBP
View
B
Retailer 11
-
£392 GBP
View
B
Retailer 12
-
£403 GBP
View
B
Retailer 13
-
£437 GBP
View
B
Retailer 14
-
£448 GBP
View
B
Retailer 15
-
£450 GBP
View
B
Retailer 16
-
£666 GBP
View
Most Expensive
NZ Jewellers
999b5d6f-f80b-4b92-bff7-4add66384fd9 · Nov 5
£1,107 GBP
$1,490 USD
View
Price under review
16 more retailers have this diamond
Prices start from £247 GBPSave up to £419 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
£247 GBP