CaratHunter
Plans
Round|Lab Grown|IGI

1.66ct F VVS1 Round Lab Grown Diamond

ID • F/VVS1 • IGI LG636400623

Shape and cutting style on the report: Round brilliant

Certificate IGI LG636400623

Diamond specifications and retailer prices

From €1,846 EUR
$2,070 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: €1,846 EUR at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG636400623 or 636400623. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG636400623
Dimensions7.63 × 7.59 × 4.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.63 mm7.59 mm1.66 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG636400623
Side View
Table 59.0%Crown 33.2°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €1,846 EUR|Low: €479 EUR|High: €2,737 EUR|Avg: €1,265 EUR|-24.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
April 29, 2026
Retailer 10€479 EUR
Retailer 4€594 EUR
Retailer 5€615 EUR
Retailer 7€661 EUR
Retailer 6€747 EUR
Retailer 3€895 EUR
Retailer 9€1,225 EUR
Retailer 11€1,279 EUR
Retailer 2€1,515 EUR
Brilliant Earth€1,846 EUR
Retailer 8€2,175 EUR

48 data points across 11 retailers

1 retailer

B
Brilliant Earth
10697397Y · Nov 2
€1,846 EUR
$2,070 USD
View

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
1.66ct Round
€1,846 EUR