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Round|Lab Grown|IGI

1.64ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG395987168

Shape and cutting style on the report: Round brilliant

Certificate IGI LG395987168

Diamond specifications and retailer prices

From €222 EUR
$248 USD
As of October 30, 2026
Save €767 EUR (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €989 EUR at MOH London · As of October 29, 2026
View at MOH London

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG395987168 or 395987168. Listed at 7 retailers as of October 29, 2026, with prices from €222 to €989, a €767 spread on the same certified stone. MOH London lists it at €989. 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
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG395987168
Dimensions7.78 × 7.74 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.78 mm7.74 mm1.64 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG395987168
Side View
Table 60.5%Crown 32.7°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 58.3%

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: Oct 30
Current: €989 EUR|Low: €158 EUR|High: €996 EUR|Avg: €529 EUR|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 6€222 EUR
Retailer 3€404 EUR
Retailer 5€419 EUR
Retailer 2€456 EUR
Retailer 7€544 EUR
Retailer 4€680 EUR
MOH London€989 EUR

41 data points across 7 retailers

7 retailers€222 EUR to €989 EUR

A
Cheapest Retailer
-
€222 EUR
$248 USD
Final sale: no returns
A
Retailer 2
-
€404 EUR
View
B+
Retailer 3
-
€419 EUR
$468 USD
View
B+
Retailer 4
-
€456 EUR
£401 GBP
View
B+
Retailer 5
-
€544 EUR
$608 USD
View
Retailer 6
-
€680 EUR
$760 USD
View
Price last confirmed 11 days ago
Most Expensive
B
MOH London
LG395987168 · Oct 29
€989 EUR
£870 GBP
View
6 more retailers have this diamond
Prices start from €222 EURSave up to €767 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
€222 EUR