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Round|Lab Grown|IGI

1.71ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG799635486

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799635486

Diamond specifications and retailer prices

From €201 EUR
$224 USD
As of November 1, 2026
Save €796 EUR (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €997 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG799635486 or 799635486. Listed at 16 retailers as of November 1, 2026, with prices from €201 to €997, a €796 spread on the same certified stone. MOH London lists it at €997. 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
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799635486
Dimensions7.69 × 7.73 × 4.67 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.69 mm7.73 mm1.71 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799635486
Side View
Table 59.0%Crown 33.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
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: €997 EUR|Low: €201 EUR|High: €1,009 EUR|Avg: €572 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6€201 EUR
Retailer 8€249 EUR
Retailer 3€416 EUR
Retailer 9€423 EUR
Retailer 2€463 EUR
Retailer 10€482 EUR
Retailer 5€653 EUR
Retailer 4€743 EUR
Retailer 7€931 EUR
MOH London€997 EUR

42 data points across 10 retailers

16 retailers€201 EUR to €997 EUR

A
Cheapest Retailer
-
€201 EUR
$224 USD
A
Retailer 2
-
€233 EUR
$260 USD
View
Retailer 3
-
€249 EUR
$278 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
€249 EUR
$278 USD
View
A
Retailer 5
-
€416 EUR
View
B+
Retailer 6
-
€423 EUR
$473 USD
View
A
Retailer 7
-
€463 EUR
£407 GBP
View
A
Retailer 8
-
€476 EUR
$532 USD
View
A
Retailer 9
-
€482 EUR
$539 USD
View
B+
Retailer 10
-
€653 EUR
$729 USD
View
Retailer 11
-
€729 EUR
$815 USD
View
Price last confirmed 47 days ago
B+
Retailer 12
-
€743 EUR
$830 USD
View
B+
Retailer 13
-
€800 EUR
$894 USD
View
B
Retailer 14
-
€847 EUR
$946 USD
View
B
Retailer 15
-
€931 EUR
$1,040 USD
View
Most Expensive
B
MOH London
LG799635486 · Nov 1
€997 EUR
£877 GBP
View
15 more retailers have this diamond
Prices start from €201 EURSave up to €796 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
€201 EUR