CaratHunter
Plans
Round|Lab Grown|IGI

1.64ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG12279308

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12279308

Diamond specifications and retailer prices

From €387 EUR
$432 USD
As of November 1, 2026
Save €2,424 EUR (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €2,811 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.64ct lab-grown round diamond

This 1.64ct 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 LG12279308 or 12279308. Listed at 11 retailers as of October 31, 2026, with prices from €387 to €2,811, a €2,424 spread on the same certified stone. Do Amore Diamonds lists it at €2,811. 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

1.64
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12279308
Dimensions7.59 × 7.61 × 4.64 mm
L/W Ratio1.00
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
7.59 mm7.61 mm1.64 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12279308
Side View
Table 59.5%Crown 35°Girdle: MediumPavilion 41°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €2,811 EUR|Low: €387 EUR|High: €2,811 EUR|Avg: €1,008 EUR|+0.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6€387 EUR
Retailer 8€484 EUR
Retailer 9€528 EUR
Retailer 11€678 EUR
Retailer 4€698 EUR
Retailer 3€760 EUR
Retailer 5€806 EUR
Retailer 7€1,149 EUR
Retailer 10€1,186 EUR
Retailer 2€1,690 EUR
Do Amore Diamonds€2,811 EUR

11 data points across 11 retailers

11 retailers€387 EUR to €2,811 EUR

B+
Cheapest Retailer
-
€387 EUR
$432 USD
A
Retailer 2
-
€484 EUR
$541 USD
View
A
Retailer 3
-
€528 EUR
$590 USD
View
A
Retailer 4
-
€678 EUR
$758 USD
View
A
Retailer 5
-
€698 EUR
£614 GBP
View
A
Retailer 6
-
€760 EUR
$849 USD
View
A
Retailer 7
-
€806 EUR
$900 USD
View
A
Retailer 8
-
€1,149 EUR
$1,284 USD
View
A
Retailer 9
-
€1,186 EUR
$1,325 USD
View
B+
Retailer 10
-
€1,690 EUR
£1,487 GBP
View
Most Expensive
B
Do Amore Diamonds
27-DBBFF0559 · Oct 31
€2,811 EUR
$3,140 USD
View
10 more retailers have this diamond
Prices start from €387 EURSave up to €2,424 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
1.64ct Round
€387 EUR