Emerald|Natural|GIA

0.50ct J SI1 Emerald Natural Diamond

GD • J/SI1 • GIA 6321227020

Certificate GIA 6321227020

Diamond specifications and retailer prices

From £378 GBP
$506 USD
As of October 29, 2026
Save £135 GBP (26%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,306 GBP at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6321227020. Listed at 7 retailers as of October 29, 2026, with a 36% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6321227020
Dimensions5.06 × 3.80 × 2.60 mm
L/W Ratio1.33
Girdle conditionVery Thick
Culet sizeNone
Top View
5.06 mm3.80 mm0.50 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6321227020
Side View
Table 68.4%CrownGirdle: 60PavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £513 GBP|Low: £407 GBP|High: £518 GBP|Avg: £470 GBP
Retailer 1
Retailer 2
Retailer 3
October 30, 2026
Retailer 2£407 GBP
Retailer 3£479 GBP
Retailer 1£513 GBP

36 data points across 3 retailers

7 retailers£378 GBP to £513 GBP

B+
Cheapest Retailer
-
£378 GBP
$506 USD
B
Retailer 2
-
£407 GBP
$545 USD
View
B
Retailer 3
-
£407 GBP
$545 USD
View
B
Retailer 4
-
£435 GBP
$583 USD
View
B
Retailer 5
-
£479 GBP
$642 USD
View
B
Retailer 6
-
£513 GBP
View
Most Expensive
NZ Jewellers
b8f01c32-71be-4ff0-9862-b17d164cb482 · Oct 30
£1,306 GBP
$1,750 USD
View
Price under review
6 more retailers have this diamond
Prices start from £378 GBPSave up to £135 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+
0.50ct Emerald
£378 GBP