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Round|Lab Grown|IGI

1.35ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG660459305

Certificate IGI LG660459305

Diamond specifications and retailer prices

From €794 EUR
$890 USD
As of November 3, 2026
Save €544 EUR (41%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €1,337 EUR at Jared · As of November 2, 2026
View at Jared

About this 1.35ct lab-grown round diamond

This 1.35ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG660459305 or 660459305. Listed at 3 retailers as of November 2, 2026, with prices from €794 to €1,337, a €544 spread on the same certified stone. Jared lists it at €1,337. 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

1.35
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG660459305
Dimensions7.12 × 7.15 mm
L/W Ratio1.00
Top View
7.12 mm7.15 mm1.35 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660459305
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 3
Current: €1,337 EUR|Low: €794 EUR|High: €1,337 EUR|Avg: €1,039 EUR
Jared
Retailer 2
Retailer 3
April 27, 2026
Retailer 2€794 EUR
Retailer 3€794 EUR
Jared€1,337 EUR

7 data points across 3 retailers

3 retailers€794 EUR to €1,337 EUR

B
Cheapest Retailer
-
€794 EUR
$890 USD
B
Retailer 2
-
€794 EUR
$890 USD
View
Most Expensive
B
Jared
154529110 · Nov 2
€1,337 EUR
$1,500 USD
View
2 more retailers have this diamond
Prices start from €794 EURSave up to €544 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
1.35ct Round
€794 EUR