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Round|Lab Grown|IGI

1.66ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG442054368

Shape and cutting style on the report: Round brilliant

Certificate IGI LG442054368

Diamond specifications and retailer prices

From €270 EUR
$303 USD
As of November 1, 2026
Save €2,128 EUR (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €2,398 EUR at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG442054368 or 442054368. Listed at 14 retailers as of November 1, 2026, with prices from €270 to €2,398, a €2,128 spread on the same certified stone. Do Amore Diamonds lists it at €2,398. 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

1.66
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442054368
Dimensions7.62 × 7.59 × 4.70 mm
L/W Ratio1.00
Girdle conditionPARTLY FACETED
Culet sizePointed
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa
Top View
7.62 mm7.59 mm1.66 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG442054368
Side View
Table 57.5%Crown 35.5°Girdle: MediumPavilion 41°Culet: NoneDepth 61.8%

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: €2,398 EUR|Low: €211 EUR|High: €2,398 EUR|Avg: €753 EUR|+18.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 3€237 EUR
Retailer 8€270 EUR
Retailer 10€335 EUR
Retailer 11€335 EUR
Retailer 9€482 EUR
Retailer 6€486 EUR
Retailer 5€538 EUR
Retailer 12€547 EUR
Retailer 13€763 EUR
Retailer 7€1,029 EUR
Retailer 4€1,196 EUR
Retailer 2€1,481 EUR
Do Amore Diamonds€2,398 EUR

15 data points across 13 retailers

14 retailers€270 EUR to €2,398 EUR

Retailer 1
-
€244 EUR
$274 USD
Price last confirmed 27 days ago
Retailer 2
-
€244 EUR
$274 USD
View
Price last confirmed 31 days ago
Retailer 3
-
€261 EUR
$293 USD
View
Price last confirmed 31 days ago
A
Retailer 4
-
€270 EUR
$303 USD
View
Retailer 5
-
€335 EUR
$376 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
€335 EUR
$376 USD
View
A
Retailer 7
-
€482 EUR
$541 USD
View
A
Retailer 8
-
€486 EUR
$545 USD
View
A
Retailer 9
-
€547 EUR
$613 USD
View
A
Retailer 10
-
€763 EUR
$855 USD
View
B+
Retailer 11
-
€1,029 EUR
$1,154 USD
View
A
Retailer 12
-
€1,196 EUR
$1,341 USD
View
B+
Retailer 13
-
€1,481 EUR
£1,308 GBP
View
Most Expensive
B
Do Amore Diamonds
27-4AA9EDD5C · Nov 2
€2,398 EUR
$2,690 USD
View
13 more retailers have this diamond
Prices start from €270 EURSave up to €2,128 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
€270 EUR