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Radiant|Lab Grown|IGI

1.34ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG788670777

Certificate IGI LG788670777

Diamond specifications and retailer prices

From €597 EUR
$665 USD
As of October 29, 2026
Save €517 EUR (46%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €1,114 EUR at Jared · As of October 30, 2026
View at Jared

About this 1.34ct lab-grown radiant diamond

This 1.34ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG788670777 or 788670777. Listed at 4 retailers as of October 29, 2026, with prices from €597 to €1,114, a €517 spread on the same certified stone. Jared lists it at €1,114. 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

1.34
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG788670777
Dimensions7.31 × 5.85 × 3.85 mm
L/W Ratio1.25
Top View
7.31 mm5.85 mm1.34 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788670777
Side View
Table 65.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 65.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: €1,114 EUR|Low: €597 EUR|High: €1,509 EUR|Avg: €891 EUR|-26.2%
Jared
Retailer 2
Retailer 3
Retailer 4
September 28, 2026
Retailer 2€597 EUR
Retailer 3€827 EUR
Retailer 4€827 EUR
Jared€1,114 EUR

2 data points across 4 retailers

4 retailers€597 EUR to €1,114 EUR

B
Cheapest Retailer
-
€597 EUR
$665 USD
B
Retailer 2
-
€827 EUR
$920 USD
View
B
Retailer 3
-
€827 EUR
$920 USD
View
Most Expensive
B
Jared
158641245 · Oct 30
€1,114 EUR
$1,240 USD
View
3 more retailers have this diamond
Prices start from €597 EURSave up to €517 EUR

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
1.34ct Radiant
€597 EUR