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Radiant|Lab Grown|GIA

1.16ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • GIA 5506994395

Certificate GIA 5506994395

Diamond specifications and retailer prices

From £297 GBP
As of November 6, 2026
Save £1,122 GBP (79%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,419 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.16ct lab-grown radiant diamond

This 1.16ct lab-grown radiant sits in the classic one-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 5506994395. Listed at 4 retailers as of November 5, 2026, with prices from £297 to £1,419, a £1,122 spread on the same certified stone. MOH London lists it at £1,419. 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

1.16
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 5506994395
Dimensions7.79 × 5.12 × 3.43 mm
L/W Ratio1.52
Girdle conditionPolished
Cert comments
This is a man-made diamond produced by CVD (Chemical Vapor Deposition) growth process and has evidence of post-growth treatments to change the color.
Key to symbols
Growth Remnant
Top View
7.79 mm5.12 mm1.16 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5506994395
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.0%

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 6
Current: £1,419 GBP|Low: £297 GBP|High: £1,440 GBP|Avg: £746 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 3£297 GBP
Retailer 2£539 GBP
MOH London£1,419 GBP

41 data points across 3 retailers

4 retailers£297 GBP to £1,419 GBP

A
Cheapest Retailer
-
£297 GBP
Final sale: no returns
B+
Retailer 2
-
£539 GBP
View
B
Retailer 3
-
£1,171 GBP
View
Most Expensive
B
MOH London
5506994395 · Nov 5
£1,419 GBP
View
3 more retailers have this diamond
Prices start from £297 GBPSave up to £1,122 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
1.16ct Radiant
£297 GBP