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Emerald|Natural|GIA

0.51ct G SI2 Emerald Natural Diamond

EX • G/SI2 • GIA 1565550631

Certificate GIA 1565550631

Diamond specifications and retailer prices

From £304 GBP
As of November 3, 2026
Save £457 GBP (60%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,269 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565550631. Listed at 10 retailers as of November 3, 2026, with a 150% 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

0.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565550631
Dimensions3.66 × 5.64 × 2.31 mm
L/W Ratio1.54
Top View
3.66 mm5.64 mm0.51 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1565550631
Side View
Table 67.0%CrownGirdlePavilionCulet: NoneDepth 63.0%

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 3
Current: £1,269 GBP|Low: £304 GBP|High: £1,344 GBP|Avg: £620 GBP|-1.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 4, 2026
Retailer 10£304 GBP
Retailer 6£355 GBP
Retailer 4£393 GBP
Retailer 3£406 GBP
Retailer 7£413 GBP
Retailer 8£427 GBP
Retailer 9£467 GBP
Retailer 2£761 GBP
Retailer 5£1,265 GBP
Queensmith£1,269 GBP

19 data points across 10 retailers

10 retailers£304 GBP to £761 GBP

A
Cheapest Retailer
-
£304 GBP
Final sale: no returns
A
Retailer 2
-
£355 GBP
View
A
Retailer 3
-
£393 GBP
View
A
Retailer 4
-
£406 GBP
View
B+
Retailer 5
-
£413 GBP
View
B+
Retailer 6
-
£427 GBP
View
B+
Retailer 7
-
£467 GBP
View
B
Retailer 8
-
£761 GBP
View
Retailer 9
-
£1,265 GBP
View
Price under review
Most Expensive
Queensmith
1565550631 · Oct 28
£1,269 GBP
View
Price under review
9 more retailers have this diamond
Prices start from £304 GBPSave up to £457 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
£304 GBP