CaratHunter
Plans
Pear|Natural|GIA

0.51ct I SI1 Pear Natural Diamond

EX • I/SI1 • GIA 6542210640

Certificate GIA 6542210640

Diamond specifications and retailer prices

From £285 GBP
As of November 6, 2026
Save £615 GBP (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £900 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural pear diamond

This 0.51ct natural pear sits in the half to three-quarter carat band, graded I 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 6542210640. Listed at 9 retailers as of November 4, 2026, with prices from £285 to £900, a £615 spread on the same certified stone. MOH London lists it at £900. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6542210640
Dimensions7.03 × 4.44 × 2.70 mm
L/W Ratio1.58
Top View
7.03 mm4.44 mm0.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6542210640
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.8%

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 6
Current: £900 GBP|Low: £285 GBP|High: £912 GBP|Avg: £563 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 4£285 GBP
Retailer 3£484 GBP
Retailer 2£538 GBP
Retailer 5£579 GBP
Retailer 7£586 GBP
Retailer 6£605 GBP
MOH London£900 GBP

38 data points across 7 retailers

9 retailers£285 GBP to £900 GBP

A
Cheapest Retailer
-
£285 GBP
A
Retailer 2
-
£325 GBP
View
B+
Retailer 3
-
£484 GBP
View
B
Retailer 4
-
£538 GBP
View
B
Retailer 5
-
£546 GBP
View
B
Retailer 6
-
£579 GBP
View
Retailer 7
-
£586 GBP
View
Price last confirmed 34 days ago
B+
Retailer 8
-
£605 GBP
View
Most Expensive
B
MOH London
8E53F41AB · Nov 4
£900 GBP
View
8 more retailers have this diamond
Prices start from £285 GBPSave up to £615 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 Pear
£285 GBP