CaratHunter
Plans
Emerald|Natural|GIA

0.51ct E SI1 Emerald Natural Diamond

EX • E/SI1 • GIA 2567677126

Certificate GIA 2567677126

Diamond specifications and retailer prices

From £453 GBP
As of November 4, 2026
Save £355 GBP (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £809 GBP at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2567677126. Listed at 10 retailers as of November 4, 2026, with prices from £453 to £809, a £355 spread on the same certified stone. Frank Darling lists it at £809. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2567677126
Dimensions5.79 × 3.74 × 2.43 mm
L/W Ratio1.55
Culet sizeNone
Top View
5.79 mm3.74 mm0.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2567677126
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.9%

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: Nov 4
Current: £809 GBP|Low: £453 GBP|High: £809 GBP|Avg: £636 GBP
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8£453 GBP
Retailer 10£495 GBP
Retailer 5£526 GBP
Retailer 3£577 GBP
Retailer 9£644 GBP
Retailer 2£688 GBP
Retailer 6£693 GBP
Retailer 4£727 GBP
Retailer 7£744 GBP
Frank Darling£809 GBP

3 data points across 10 retailers

10 retailers£453 GBP to £809 GBP

A
Cheapest Retailer
-
£453 GBP
B+
Retailer 2
-
£495 GBP
View
B+
Retailer 3
-
£526 GBP
View
B+
Retailer 4
-
£577 GBP
View
B
Retailer 5
-
£644 GBP
View
B
Retailer 6
-
£688 GBP
View
B
Retailer 7
-
£693 GBP
View
B
Retailer 8
-
£727 GBP
View
B
Retailer 9
-
£744 GBP
View
Most Expensive
B
Frank Darling
2714821HK · Nov 6
£809 GBP
$1,088 USD
View
9 more retailers have this diamond
Prices start from £453 GBPSave up to £355 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
£453 GBP