CaratHunter
Plans
Cushion|Natural|GIA

0.51ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 3395881631

Certificate GIA 3395881631

Diamond specifications and retailer prices

From £810 GBP
$1,079 USD
As of October 30, 2026
Save £908 GBP (53%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,719 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3395881631. Listed at 6 retailers as of October 29, 2026, with prices from £810 to £1,719, a £908 spread on the same certified stone. MOH London lists it at £1,719. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 3395881631
Dimensions4.54 × 4.34 × 3.00 mm
L/W Ratio1.05
Top View
4.54 mm4.34 mm0.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 3395881631
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,719 GBP|Low: £807 GBP|High: £1,730 GBP|Avg: £1,149 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 4£807 GBP
Retailer 5£846 GBP
Retailer 6£899 GBP
Retailer 2£1,065 GBP
Retailer 3£1,303 GBP
Retailer 7£1,405 GBP
MOH London£1,719 GBP

41 data points across 7 retailers

6 retailers£810 GBP to £1,719 GBP

Retailer 1
-
£807 GBP
$1,075 USD
Price last confirmed 11 days ago
B
Retailer 2
-
£810 GBP
$1,079 USD
View
B
Retailer 3
-
£846 GBP
$1,126 USD
View
B
Retailer 4
-
£1,065 GBP
View
B
Retailer 5
-
£1,303 GBP
€1,652 EUR
View
Most Expensive
B
MOH London
47776F153 · Oct 29
£1,719 GBP
View
5 more retailers have this diamond
Prices start from £810 GBPSave up to £908 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 Cushion
£810 GBP