CaratHunter
Plans
Radiant|Lab Grown|IGI

1.71ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG519238354

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

Certificate IGI LG519238354

Diamond specifications and retailer prices

From €546 EUR
$610 USD
As of October 30, 2026
Save €1,979 EUR (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €2,525 EUR at MOH London · As of October 26, 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG519238354 or 519238354. Listed at 12 retailers as of October 26, 2026, with prices from €546 to €2,525, a €1,979 spread on the same certified stone. MOH London lists it at €2,525. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle30°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519238354
Dimensions7.69 × 5.92 × 4.07 mm
L/W Ratio1.30
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.69 mm5.92 mm1.71 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG519238354
Side View
Table 68.5%Crown 42.6°Girdle: MediumPavilion 30°Culet: NoneDepth 68.8%

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: €2,525 EUR|Low: €389 EUR|High: €2,552 EUR|Avg: €993 EUR|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 8€487 EUR
Retailer 3€546 EUR
Retailer 12€546 EUR
Retailer 9€604 EUR
Retailer 4€607 EUR
Retailer 7€725 EUR
Retailer 5€879 EUR
Retailer 11€933 EUR
Retailer 2€941 EUR
Retailer 6€1,559 EUR
Retailer 10€1,589 EUR
MOH London€2,525 EUR

44 data points across 12 retailers

12 retailers€546 EUR to €2,525 EUR

Retailer 1
-
€487 EUR
$544 USD
Price last confirmed 8 days ago
Retailer 2
-
€546 EUR
$610 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
€546 EUR
$610 USD
View
Final sale: no returns
B+
Retailer 4
-
€604 EUR
$675 USD
View
B+
Retailer 5
-
€607 EUR
$678 USD
View
B+
Retailer 6
-
€725 EUR
$810 USD
View
B
Retailer 7
-
€879 EUR
View
B
Retailer 8
-
€933 EUR
$1,042 USD
View
B
Retailer 9
-
€941 EUR
£828 GBP
View
B
Retailer 10
-
€1,559 EUR
$1,742 USD
View
B
Retailer 11
-
€1,589 EUR
$1,775 USD
View
Most Expensive
B
MOH London
LG519238354 · Oct 26
€2,525 EUR
£2,221 GBP
View
11 more retailers have this diamond
Prices start from €546 EURSave up to €1,979 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
€546 EUR