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Radiant|Lab Grown|IGI

1.69ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG683593680

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG683593680

Diamond specifications and retailer prices

From £300 GBP
$399 USD
As of October 28, 2026
Save £583 GBP (66%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £882 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.69ct lab-grown radiant diamond

This 1.69ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG683593680 or 683593680. Listed at 3 retailers as of October 28, 2026, with prices from £300 to £882, a £583 spread on the same certified stone. MOH London lists it at £882. 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

1.69
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.1°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683593680
Dimensions8.57 × 5.87 × 3.98 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.57 mm5.87 mm1.69 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683593680
Side View
Table 65.0%Crown 43.1°Girdle: MediumPavilion 35.7°Culet: NoneDepth 67.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 28
Current: £882 GBP|Low: £288 GBP|High: £887 GBP|Avg: £517 GBP|+11.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 3£300 GBP
Retailer 7£330 GBP
Retailer 6£412 GBP
Retailer 4£433 GBP
Retailer 5£594 GBP
Retailer 2£728 GBP
MOH London£882 GBP

14 data points across 7 retailers

3 retailers£300 GBP to £882 GBP

B+
Cheapest Retailer
-
£300 GBP
$399 USD
B
Retailer 2
-
£728 GBP
$970 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
LG683593680 · Oct 29
£882 GBP
View
2 more retailers have this diamond
Prices start from £300 GBPSave up to £583 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+
1.69ct Radiant
£300 GBP