Emerald|Natural|GIA

0.51ct H SI1 Emerald Natural Diamond

GD • H/SI1 • GIA 6441318283

Certificate GIA 6441318283

Diamond specifications and retailer prices

From £307 GBP
$411 USD
As of October 29, 2026
Save £406 GBP (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,177 GBP at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6441318283. Listed at 16 retailers as of October 29, 2026, with a 132% 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6441318283
Dimensions5.33 × 3.95 × 2.47 mm
L/W Ratio1.35
Top View
5.33 mm3.95 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6441318283
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: £1,177 GBP|Low: £307 GBP|High: £1,177 GBP|Avg: £473 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 7£307 GBP
Retailer 14£321 GBP
Retailer 3£331 GBP
Retailer 6£331 GBP
Retailer 4£355 GBP
Retailer 12£378 GBP
Retailer 9£380 GBP
Retailer 15£385 GBP
Retailer 16£405 GBP
Retailer 2£466 GBP
Retailer 5£472 GBP
Retailer 11£474 GBP
Retailer 10£495 GBP
Retailer 8£507 GBP
Retailer 13£713 GBP
NZ Jewellers£1,177 GBP

32 data points across 16 retailers

16 retailers£307 GBP to £713 GBP

A
Cheapest Retailer
-
£307 GBP
$411 USD
A
Retailer 2
-
£321 GBP
$430 USD
View
B+
Retailer 3
-
£331 GBP
$443 USD
View
B+
Retailer 4
-
£331 GBP
$443 USD
View
B+
Retailer 5
-
£355 GBP
$475 USD
View
B+
Retailer 6
-
£378 GBP
View
B+
Retailer 7
-
£380 GBP
View
B+
Retailer 8
-
£385 GBP
View
B+
Retailer 9
-
£405 GBP
$542 USD
View
B
Retailer 10
-
£466 GBP
$625 USD
View
B
Retailer 11
-
£472 GBP
$633 USD
View
B
Retailer 12
-
£474 GBP
ZAR 10,259 ZAR
View
B
Retailer 13
-
£495 GBP
€632 EUR
View
Retailer 14
-
£507 GBP
A$1,044 AUD
View
Price last confirmed 26 days ago
B
Retailer 15
-
£713 GBP
View
Most Expensive
NZ Jewellers
df49e2ab-cbec-4a7a-9f9e-8aa5e02e4b27 · Oct 30
£1,177 GBP
$1,577 USD
View
Price under review
15 more retailers have this diamond
Prices start from £307 GBPSave up to £406 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
£307 GBP