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Radiant|Lab Grown|IGI

1.71ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG494160365

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

Certificate IGI LG494160365

Diamond specifications and retailer prices

From €972 EUR
$1,090 USD
As of October 31, 2026
Save €3,837 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,809 EUR at MOH London · As of November 1, 2026
View at MOH London

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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494160365 or 494160365. Listed at 10 retailers as of October 31, 2026, with prices from €972 to €4,809, a €3,837 spread on the same certified stone. MOH London lists it at €4,809. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494160365
Dimensions8.24 × 5.98 × 4.09 mm
L/W Ratio1.38
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
8.24 mm5.98 mm1.71 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494160365
Side View
Table 62.5%Crown 41.1°Girdle: MED-STKPavilion 32.4°Culet: NoneDepth 68.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €4,809 EUR|Low: €972 EUR|High: €4,873 EUR|Avg: €2,360 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2€972 EUR
Retailer 5€1,451 EUR
Retailer 9€1,579 EUR
Retailer 6€1,684 EUR
Retailer 10€1,837 EUR
Retailer 3€1,852 EUR
Retailer 11€2,264 EUR
Retailer 7€2,646 EUR
Retailer 4€2,903 EUR
Retailer 8€3,156 EUR
MOH London€4,809 EUR

18 data points across 11 retailers

10 retailers€972 EUR to €4,809 EUR

A
Cheapest Retailer
-
€972 EUR
$1,090 USD
B+
Retailer 2
-
€1,451 EUR
$1,628 USD
View
B+
Retailer 3
-
€1,579 EUR
$1,771 USD
View
Retailer 4
-
€1,684 EUR
$1,889 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
€1,684 EUR
$1,889 USD
View
B+
Retailer 6
-
€1,837 EUR
$2,060 USD
View
B
Retailer 7
-
€2,646 EUR
$2,968 USD
View
Retailer 8
-
€2,903 EUR
$3,256 USD
View
Price last confirmed 7 days ago
B
Retailer 9
-
€3,156 EUR
$3,540 USD
View
Most Expensive
B
MOH London
LG494160365 · Nov 1
€4,809 EUR
£4,247 GBP
View
9 more retailers have this diamond
Prices start from €972 EURSave up to €3,837 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
€972 EUR