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Round|Lab Grown|IGI

1.71ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG464198225

Shape and cutting style on the report: Round brilliant

Certificate IGI LG464198225

Diamond specifications and retailer prices

From €299 EUR
$334 USD
As of November 1, 2026
Save €2,359 EUR (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €2,658 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 LG464198225 or 464198225. Listed at 17 retailers as of October 31, 2026, with prices from €299 to €2,658, a €2,359 spread on the same certified stone. Do Amore Diamonds lists it at €2,658. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG464198225
Dimensions7.65 × 7.70 × 4.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa.
Top View
7.65 mm7.70 mm1.71 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG464198225
Side View
Table 57.5%Crown 35.4°Girdle: MediumPavilion 41°Culet: NoneDepth 61.9%

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: Nov 1
Current: €2,658 EUR|Low: €299 EUR|High: €2,658 EUR|Avg: €916 EUR
Do Amore Diamonds
Retailer 2
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Retailer 11
Retailer 12
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Retailer 17
November 1, 2026
Retailer 16€299 EUR
Retailer 14€347 EUR
Retailer 4€371 EUR
Retailer 13€371 EUR
Retailer 11€394 EUR
Retailer 12€439 EUR
Retailer 17€446 EUR
Retailer 15€675 EUR
Retailer 10€692 EUR
Retailer 8€694 EUR
Retailer 9€769 EUR
Retailer 5€1,088 EUR
Retailer 7€1,212 EUR
Retailer 3€1,316 EUR
Retailer 6€1,456 EUR
Retailer 2€1,599 EUR
Do Amore Diamonds€2,658 EUR

15 data points across 17 retailers

17 retailers€299 EUR to €2,658 EUR

A
Cheapest Retailer
-
€299 EUR
$334 USD
A
Retailer 2
-
€347 EUR
$388 USD
View
A
Retailer 3
-
€371 EUR
$414 USD
View
Retailer 4
-
€371 EUR
$414 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
€394 EUR
$440 USD
View
A
Retailer 6
-
€439 EUR
$490 USD
View
A
Retailer 7
-
€446 EUR
$498 USD
View
A
Retailer 8
-
€675 EUR
$754 USD
View
A
Retailer 9
-
€692 EUR
£609 GBP
View
A
Retailer 10
-
€694 EUR
$775 USD
View
A
Retailer 11
-
€769 EUR
$860 USD
View
A
Retailer 12
-
€1,088 EUR
$1,215 USD
View
A
Retailer 13
-
€1,212 EUR
$1,354 USD
View
A
Retailer 14
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€1,316 EUR
$1,470 USD
View
B+
Retailer 15
-
€1,456 EUR
$1,626 USD
View
B+
Retailer 16
-
€1,599 EUR
£1,407 GBP
View
Most Expensive
B
Do Amore Diamonds
27-C32A20587 · Oct 31
€2,658 EUR
$2,970 USD
View
16 more retailers have this diamond
Prices start from €299 EURSave up to €2,359 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
€299 EUR