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Radiant|Lab Grown|IGI

1.70ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG617427460

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

Certificate IGI LG617427460

Diamond specifications and retailer prices

From €160 EUR
$180 USD
As of November 2, 2026
Save €945 EUR (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,106 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.7ct lab-grown radiant diamond

This 1.7ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG617427460 or 617427460. Listed at 14 retailers as of November 2, 2026, with prices from €160 to €1,106, a €945 spread on the same certified stone. Brilliant Earth lists it at €1,106. 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

1.70
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.1°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617427460
Dimensions8.33 × 5.89 × 4.02 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.33 mm5.89 mm1.70 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617427460
Side View
Table 65.0%Crown 43.1°Girdle: MediumPavilion 35.9°Culet: NoneDepth 68.3%

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 2
Current: €1,106 EUR|Low: €160 EUR|High: €1,266 EUR|Avg: €485 EUR|-12.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 3, 2026
Retailer 12€160 EUR
Retailer 9€186 EUR
Retailer 4€199 EUR
Retailer 5€199 EUR
Retailer 11€256 EUR
Retailer 3€352 EUR
Retailer 8€357 EUR
Retailer 2€358 EUR
Retailer 10€496 EUR
Retailer 14€504 EUR
Retailer 13€639 EUR
Retailer 6€675 EUR
Retailer 7€930 EUR
Brilliant Earth€1,106 EUR

38 data points across 14 retailers

14 retailers€160 EUR to €1,106 EUR

A
Cheapest Retailer
-
€160 EUR
$180 USD
A
Retailer 2
-
€186 EUR
$209 USD
View
A
Retailer 3
-
€199 EUR
$223 USD
View
Retailer 4
-
€199 EUR
$223 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
€352 EUR
$395 USD
View
A
Retailer 6
-
€357 EUR
View
A
Retailer 7
-
€358 EUR
£316 GBP
View
A
Retailer 8
-
€496 EUR
$556 USD
View
A
Retailer 9
-
€504 EUR
$565 USD
View
B+
Retailer 10
-
€639 EUR
$717 USD
View
B+
Retailer 11
-
€675 EUR
$757 USD
View
B+
Retailer 12
-
€682 EUR
£602 GBP
View
B+
Retailer 13
-
€930 EUR
£821 GBP
View
Most Expensive
B
Brilliant Earth
9016409A · Nov 2
€1,106 EUR
$1,240 USD
View
13 more retailers have this diamond
Prices start from €160 EURSave up to €945 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.

A
1.70ct Radiant
€160 EUR