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Round|Lab Grown|IGI

1.71ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG442067089

Shape and cutting style on the report: Round brilliant

Certificate IGI LG442067089

Diamond specifications and retailer prices

From €850 EUR
$950 USD
As of October 31, 2026
Save €3,751 EUR (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,602 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.71ct lab-grown round diamond

This 1.71ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG442067089 or 442067089. Listed at 11 retailers as of October 31, 2026, with prices from €850 to €4,602, a €3,751 spread on the same certified stone. MOH London lists it at €4,602. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442067089
Dimensions7.81 × 7.79 × 4.57 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.81 mm7.79 mm1.71 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG442067089
Side View
Table 59.5%Crown 31.6°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 58.6%

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: €4,602 EUR|Low: €850 EUR|High: €4,657 EUR|Avg: €2,421 EUR|-1.1%
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€850 EUR
Retailer 5€1,389 EUR
Retailer 8€1,555 EUR
Retailer 6€1,611 EUR
Retailer 9€1,763 EUR
Retailer 3€1,806 EUR
Retailer 10€2,179 EUR
Retailer 7€2,536 EUR
Retailer 4€2,849 EUR
MOH London€4,602 EUR
Retailer 11€4,612 EUR

15 data points across 11 retailers

11 retailers€850 EUR to €4,602 EUR

A
Cheapest Retailer
-
€850 EUR
$950 USD
B+
Retailer 2
-
€1,389 EUR
$1,552 USD
View
B+
Retailer 3
-
€1,511 EUR
$1,688 USD
View
B+
Retailer 4
-
€1,555 EUR
$1,737 USD
View
Final sale: no returns
Retailer 5
-
€1,611 EUR
$1,800 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
€1,611 EUR
$1,800 USD
View
B+
Retailer 7
-
€1,763 EUR
$1,970 USD
View
B
Retailer 8
-
€2,536 EUR
$2,833 USD
View
B
Retailer 9
-
€2,849 EUR
$3,183 USD
View
B
Retailer 10
-
€3,020 EUR
$3,374 USD
View
Most Expensive
B
MOH London
LG442067089 · Nov 1
€4,602 EUR
£4,048 GBP
View
10 more retailers have this diamond
Prices start from €850 EURSave up to €3,751 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 Round
€850 EUR