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Emerald|Natural|GIA

0.51ct I SI2 Emerald Natural Diamond

GD • I/SI2 • GIA 6465552253

Certificate GIA 6465552253

Diamond specifications and retailer prices

From £313 GBP
$420 USD
As of October 28, 2026
Save £379 GBP (55%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £693 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6465552253. Listed at 4 retailers as of October 28, 2026, with prices from £313 to £693, a £379 spread on the same certified stone. MOH London lists it at £693. 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
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6465552253
Dimensions5.24 × 3.99 × 2.61 mm
L/W Ratio1.31
Top View
5.24 mm3.99 mm0.51 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6465552253
Side View
Table 64.0%CrownGirdle: ThinPavilionCulet: NoneDepth 65.4%

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 28
Current: £693 GBP|Low: £308 GBP|High: £698 GBP|Avg: £471 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 4£313 GBP
Retailer 2£390 GBP
Retailer 5£463 GBP
Retailer 3£540 GBP
MOH London£693 GBP

42 data points across 5 retailers

4 retailers£313 GBP to £693 GBP

B+
Cheapest Retailer
-
£313 GBP
$420 USD
B+
Retailer 2
-
£390 GBP
View
B
Retailer 3
-
£540 GBP
€689 EUR
View
Most Expensive
C
MOH London
ECB4AD2ED · Oct 29
£693 GBP
View
3 more retailers have this diamond
Prices start from £313 GBPSave up to £379 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+
0.51ct Emerald
£313 GBP