CaratHunter
Plans
Emerald|Natural|GIA

0.51ct H SI1 Emerald Natural Diamond

EX • H/SI1 • GIA 1565363344

Certificate GIA 1565363344

Diamond specifications and retailer prices

From £241 GBP
$323 USD
As of October 31, 2026
Save £564 GBP (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £805 GBP at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565363344. Listed at 14 retailers as of October 31, 2026, with prices from £241 to £805, a £564 spread on the same certified stone. MOH London lists it at £805. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1565363344
Dimensions5.77 × 3.60 × 2.41 mm
L/W Ratio1.60
Girdle conditionThick
Top View
5.77 mm3.60 mm0.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1565363344
Side View
Table 64.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 67.0%

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 31
Current: £805 GBP|Low: £259 GBP|High: £1,336 GBP|Avg: £559 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 4£260 GBP
Retailer 2£428 GBP
Retailer 3£434 GBP
Retailer 8£437 GBP
Retailer 10£446 GBP
Retailer 5£504 GBP
Retailer 6£526 GBP
Retailer 7£538 GBP
MOH London£805 GBP
Retailer 9£1,336 GBP

26 data points across 10 retailers

14 retailers£241 GBP to £805 GBP

A
Cheapest Retailer
-
£241 GBP
$323 USD
Final sale: no returns
A
Retailer 2
-
£260 GBP
₹33,149 INR
View
A
Retailer 3
-
£321 GBP
$430 USD
View
B+
Retailer 4
-
£428 GBP
View
B+
Retailer 5
-
£434 GBP
View
B+
Retailer 6
-
£437 GBP
View
B+
Retailer 7
-
£446 GBP
$598 USD
View
B+
Retailer 8
-
£458 GBP
$614 USD
View
B
Retailer 9
-
£504 GBP
$675 USD
View
B+
Retailer 10
-
£526 GBP
€671 EUR
View
B+
Retailer 11
-
£538 GBP
ZAR 11,643 ZAR
View
Retailer 12
-
£566 GBP
A$1,166 AUD
View
Price last confirmed 28 days ago
Most Expensive
B
MOH London
FF02CDAAB · Nov 1
£805 GBP
View
12 more retailers have this diamond
Prices start from £241 GBPSave up to £564 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
£241 GBP