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1.64ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • GIA 6505255842

Shape and cutting style on the report: Round brilliant

Certificate GIA 6505255842

Diamond specifications and retailer prices

From €1,144 EUR
$1,278 USD
As of October 31, 2026
2 retailers carry this diamond
Most expensive: €2,730 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6505255842. Listed at 2 retailers as of October 31, 2026. 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
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 6505255842
Dimensions7.55 × 7.58 × 4.66 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Culet sizeNone
Key to symbols
Growth Remnant
Top View
7.55 mm7.58 mm1.64 ctG / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6505255842
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: €2,730 EUR|Low: €865 EUR|High: €2,730 EUR|Avg: €1,349 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
July 31, 2026
Retailer 3€865 EUR
Retailer 2€1,144 EUR
Do Amore Diamonds€2,730 EUR

2 data points across 3 retailers

2 retailers

B
Cheapest Retailer
-
€1,144 EUR
$1,278 USD
Most Expensive
Do Amore Diamonds
24-2412-124AA · Oct 31
€2,730 EUR
$3,050 USD
View
Price under review
1 more retailer has this diamond
Prices start from €1,144 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.

B
1.64ct Round
€1,144 EUR