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Round|Lab Grown|IGI

1.66ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG768621154

Shape and cutting style on the report: Round brilliant

Certificate IGI LG768621154

Diamond specifications and retailer prices

From €279 EUR
$313 USD
As of November 1, 2026
Save €1,117 EUR (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,396 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.66ct lab-grown round diamond

This 1.66ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768621154 or 768621154. Listed at 18 retailers as of October 29, 2026, with prices from €279 to €1,396, a €1,117 spread on the same certified stone. MOH London lists it at €1,396. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768621154
Dimensions7.67 × 7.61 × 4.70 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.67 mm7.61 mm1.66 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768621154
Side View
Table 56.0%Crown 33.6°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.5%

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: €1,396 EUR|Low: €268 EUR|High: €1,457 EUR|Avg: €720 EUR|-3.1%
MOH London
Retailer 2
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Retailer 19
November 2, 2026
Retailer 19€279 EUR
Retailer 3€312 EUR
Retailer 7€325 EUR
Retailer 5€347 EUR
Retailer 18€347 EUR
Retailer 17€477 EUR
Retailer 13€486 EUR
Retailer 15€494 EUR
Retailer 9€582 EUR
Retailer 2€597 EUR
Retailer 12€616 EUR
Retailer 14€807 EUR
Retailer 10€902 EUR
Retailer 16€1,016 EUR
Retailer 6€1,114 EUR
Retailer 11€1,155 EUR
Retailer 4€1,331 EUR
Retailer 8€1,387 EUR
MOH London€1,396 EUR

40 data points across 19 retailers

18 retailers€279 EUR to €1,396 EUR

A
Cheapest Retailer
-
€279 EUR
$313 USD
A
Retailer 2
-
€312 EUR
$350 USD
View
Final sale: no returns
A
Retailer 3
-
€325 EUR
$364 USD
View
A
Retailer 4
-
€347 EUR
$389 USD
View
Retailer 5
-
€347 EUR
$389 USD
View
Price last confirmed 8 days ago
A
Retailer 6
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€477 EUR
$535 USD
View
A
Retailer 7
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€486 EUR
$545 USD
View
A
Retailer 8
-
€582 EUR
$653 USD
View
A
Retailer 9
-
€597 EUR
ZAR 10,825 ZAR
View
A
Retailer 10
-
€616 EUR
£544 GBP
View
A
Retailer 11
-
€807 EUR
A$1,393 AUD
View
B+
Retailer 12
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€902 EUR
$1,012 USD
View
B+
Retailer 13
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€1,016 EUR
$1,140 USD
View
B+
Retailer 14
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€1,114 EUR
$1,249 USD
View
B+
Retailer 15
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€1,155 EUR
$1,295 USD
View
B
Retailer 16
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€1,331 EUR
$1,493 USD
View
B
Retailer 17
-
€1,387 EUR
$1,555 USD
View
Most Expensive
B+
MOH London
LG768621154 · Oct 29
€1,396 EUR
£1,233 GBP
View
17 more retailers have this diamond
Prices start from €279 EURSave up to €1,117 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
1.66ct Round
€279 EUR