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Radiant|Lab Grown|IGI

1.71ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG578353116

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

Certificate IGI LG578353116

Diamond specifications and retailer prices

From €162 EUR
$182 USD
As of October 27, 2026
Save €1,398 EUR (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €1,560 EUR at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.71ct lab-grown radiant diamond

This 1.71ct 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 LG578353116 or 578353116. Listed at 9 retailers as of October 27, 2026, with prices from €162 to €1,560, a €1,398 spread on the same certified stone. Do Amore Diamonds lists it at €1,560. 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

1.71
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.1°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG578353116
Dimensions8.51 × 5.72 × 3.89 mm
L/W Ratio1.49
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
8.51 mm5.72 mm1.71 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG578353116
Side View
Table 65.0%Crown 46.1°Girdle: MediumPavilion 35°Culet: NoneDepth 68.0%

Caratlytics Score

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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: Oct 27
Current: €1,560 EUR|Low: €130 EUR|High: €1,623 EUR|Avg: €668 EUR|-3.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 6€162 EUR
Retailer 3€188 EUR
Retailer 9€189 EUR
Retailer 5€356 EUR
Retailer 4€684 EUR
Retailer 8€710 EUR
Retailer 7€714 EUR
Retailer 2€1,044 EUR
Do Amore Diamonds€1,560 EUR

21 data points across 9 retailers

9 retailers€162 EUR to €1,560 EUR

A
Cheapest Retailer
-
€162 EUR
$182 USD
A
Retailer 2
-
€188 EUR
$211 USD
View
A
Retailer 3
-
€189 EUR
$212 USD
View
Final sale: no returns
B+
Retailer 4
-
€356 EUR
$399 USD
View
Retailer 5
-
€684 EUR
$767 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
€710 EUR
$796 USD
View
B+
Retailer 7
-
€714 EUR
$801 USD
View
B
Retailer 8
-
€1,044 EUR
£922 GBP
View
Most Expensive
B
Do Amore Diamonds
27-9AEFA5AC9 · Oct 29
€1,560 EUR
$1,750 USD
View
8 more retailers have this diamond
Prices start from €162 EURSave up to €1,398 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
1.71ct Radiant
€162 EUR