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Radiant|Lab Grown|IGI

3.50ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG698530204

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

Certificate IGI LG698530204

Diamond specifications and retailer prices

From €425 EUR
$475 USD
As of October 30, 2026
Save €2,717 EUR (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €3,142 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.5ct lab-grown radiant diamond

This 3.5ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG698530204 or 698530204. Listed at 18 retailers as of October 30, 2026, with prices from €425 to €3,142, a €2,717 spread on the same certified stone. Brilliant Earth lists it at €3,142. 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

3.50
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.2°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG698530204
Dimensions10.51 × 7.47 × 5.04 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.51 mm7.47 mm3.50 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG698530204
Side View
Table 70.0%Crown 49.2°Girdle: Slightly ThickPavilion 35.5°Culet: NoneDepth 67.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €3,142 EUR|Low: €408 EUR|High: €5,057 EUR|Avg: €1,387 EUR|-37.9%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 31, 2026
Retailer 16€425 EUR
Retailer 3€476 EUR
Retailer 9€476 EUR
Retailer 17€527 EUR
Retailer 18€573 EUR
Retailer 12€653 EUR
Retailer 6€725 EUR
Retailer 14€767 EUR
Retailer 2€875 EUR
Retailer 11€1,184 EUR
Retailer 4€1,198 EUR
Retailer 7€1,557 EUR
Retailer 5€1,671 EUR
Retailer 10€1,721 EUR
Retailer 8€1,854 EUR
Retailer 15€1,947 EUR
Retailer 13€2,981 EUR
Brilliant Earth€3,142 EUR

43 data points across 18 retailers

18 retailers€425 EUR to €3,142 EUR

A
Cheapest Retailer
-
€425 EUR
$475 USD
A
Retailer 2
-
€476 EUR
$532 USD
View
Final sale: no returns
A
Retailer 3
-
€476 EUR
$532 USD
View
A
Retailer 4
-
€527 EUR
$589 USD
View
A
Retailer 5
-
€573 EUR
HK$5,000 HKD
View
A
Retailer 6
-
€653 EUR
$730 USD
View
B+
Retailer 7
-
€725 EUR
$810 USD
View
Retailer 8
-
€767 EUR
View
Price last confirmed 8 days ago
A
Retailer 9
-
€875 EUR
£770 GBP
View
B+
Retailer 10
-
€1,184 EUR
$1,323 USD
View
B+
Retailer 11
-
€1,198 EUR
$1,339 USD
View
B
Retailer 12
-
€1,557 EUR
$1,740 USD
View
B+
Retailer 13
-
€1,671 EUR
SGD 2,523 SGD
View
B+
Retailer 14
-
€1,721 EUR
$1,923 USD
View
B
Retailer 15
-
€1,854 EUR
$2,072 USD
View
Retailer 16
-
€1,947 EUR
£1,713 GBP
View
Price last confirmed 10 days ago
B
Retailer 17
-
€2,981 EUR
$3,330 USD
View
Most Expensive
B
Brilliant Earth
20386828A · Oct 30
€3,142 EUR
$3,510 USD
View
17 more retailers have this diamond
Prices start from €425 EURSave up to €2,717 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
3.50ct Radiant
€425 EUR