CaratHunter
Plans
Radiant|Lab Grown|IGI

1.71ct I VS2 Radiant Lab Grown Diamond

ID • I/VS2 • IGI LG512205180

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

Certificate IGI LG512205180

Diamond specifications and retailer prices

From €850 EUR
$950 USD
As of October 30, 2026
Save €2,710 EUR (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,931 EUR at MOH London · As of October 29, 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 I colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG512205180 or 512205180. Listed at 11 retailers as of October 30, 2026, with a 319% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
I
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle31.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512205180
Dimensions7.94 × 5.89 × 4.14 mm
L/W Ratio1.35
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
7.94 mm5.89 mm1.71 ctI / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512205180
Side View
Table 68.0%Crown 37.8°Girdle: Slightly ThickPavilion 31.5°Culet: NoneDepth 70.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €4,931 EUR|Low: €850 EUR|High: €4,963 EUR|Avg: €2,550 EUR|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2€850 EUR
Retailer 5€1,480 EUR
Retailer 9€1,610 EUR
Retailer 6€1,718 EUR
Retailer 11€1,871 EUR
Retailer 3€2,305 EUR
Retailer 7€2,699 EUR
Retailer 4€2,961 EUR
Retailer 8€3,219 EUR
Retailer 10€3,560 EUR
MOH London€4,931 EUR

17 data points across 11 retailers

11 retailers€850 EUR to €3,560 EUR

B+
Cheapest Retailer
-
€850 EUR
$950 USD
B
Retailer 2
-
€1,480 EUR
$1,654 USD
View
B
Retailer 3
-
€1,610 EUR
$1,799 USD
View
B
Retailer 4
-
€1,718 EUR
$1,919 USD
View
Retailer 5
-
€1,718 EUR
$1,919 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
€1,871 EUR
$2,090 USD
View
B
Retailer 7
-
€2,699 EUR
$3,015 USD
View
B
Retailer 8
-
€2,961 EUR
$3,308 USD
View
B
Retailer 9
-
€3,219 EUR
$3,596 USD
View
B
Retailer 10
-
€3,560 EUR
£3,132 GBP
View
Most Expensive
MOH London
LG512205180 · Oct 29
€4,931 EUR
£4,338 GBP
View
Price under review
10 more retailers have this diamond
Prices start from €850 EURSave up to €2,710 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+
1.71ct Radiant
€850 EUR