Emerald|Natural|IGI

0.51ct H IF Emerald Natural Diamond

VG • H/IF • IGI 815624552

Shape and cutting style on the report: Emerald cut

Certificate IGI 815624552

Diamond specifications and retailer prices

From £258 GBP
₹32,954 INR
As of October 26, 2026
Save £553 GBP (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,345 GBP at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 815624552. Listed at 9 retailers as of October 25, 2026, with a 214% 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

0.51
Carat
H
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle42.8°
OriginNatural
Grading LabIGI
CertificateIGI 815624552
Dimensions5.21 × 3.78 × 2.60 mm
L/W Ratio1.38
Culet sizeLarge
Top View
5.21 mm3.78 mm0.51 ctH / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815624552
Side View
Table 66.0%Crown 34.5°Girdle: STK-THKPavilion 42.8°Culet: LargeDepth 68.8%

Caratlytics Score

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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: Oct 26
Current: £1,345 GBP|Low: £257 GBP|High: £1,442 GBP|Avg: £583 GBP|-2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 26, 2026
Retailer 3£258 GBP
Retailer 5£351 GBP
Retailer 9£361 GBP
Retailer 8£378 GBP
Retailer 6£452 GBP
Retailer 2£476 GBP
Retailer 7£504 GBP
Retailer 4£811 GBP
NZ Jewellers£1,345 GBP

29 data points across 9 retailers

9 retailers£258 GBP to £811 GBP

A
Cheapest Retailer
-
£258 GBP
₹32,954 INR
A
Retailer 2
-
£351 GBP
$470 USD
View
Retailer 3
-
£361 GBP
€461 EUR
View
Price last confirmed 16 days ago
A
Retailer 4
-
£378 GBP
$506 USD
View
A
Retailer 5
-
£452 GBP
$606 USD
View
A
Retailer 6
-
£476 GBP
€607 EUR
View
A
Retailer 7
-
£504 GBP
$675 USD
View
B
Retailer 8
-
£811 GBP
View
Most Expensive
NZ Jewellers
34f35f0e-15c4-4aab-8289-2543211c97c6 · Oct 23
£1,345 GBP
$1,802 USD
View
Price last confirmed 7 days ago
8 more retailers have this diamond
Prices start from £258 GBPSave up to £553 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
0.51ct Emerald
£258 GBP