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Radiant|Lab Grown|IGI

1.64ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG614324832

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG614324832

Diamond specifications and retailer prices

From $155 USD
As of October 27, 2026
Save $1,335 USD (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,490 USD at Do Amore Diamonds · As of October 28, 2026
View at Do Amore Diamonds

About this 1.64ct lab-grown radiant diamond

This 1.64ct lab-grown radiant 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 LG614324832 or 614324832. Listed at 11 retailers as of October 27, 2026, with prices from $155 to $1,490, a $1,335 spread on the same certified stone. Do Amore Diamonds lists it at $1,490. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.3°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG614324832
Dimensions8.41 × 5.78 × 3.82 mm
L/W Ratio1.46
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.41 mm5.78 mm1.64 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG614324832
Side View
Table 66.0%Crown 46.3°Girdle: MediumPavilion 34°Culet: NoneDepth 66.1%

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 27
Current: $1,490 USD|Low: $155 USD|High: $1,580 USD|Avg: $706 USD|-5.7%
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
October 26, 2026
Retailer 8$155 USD
Retailer 6$180 USD
Retailer 13$184 USD
Retailer 10$351 USD
Retailer 3$414 USD
Retailer 4$611 USD
Retailer 7$655 USD
Retailer 9$684 USD
Retailer 11$715 USD
Retailer 5$926 USD
Retailer 2$996 USD
Retailer 12$1,050 USD
Do Amore Diamonds$1,490 USD

19 data points across 13 retailers

11 retailers$155 USD to $1,490 USD

A
Cheapest Retailer
-
$155 USD
A
Retailer 2
-
$180 USD
View
A
Retailer 3
-
$184 USD
View
Final sale: no returns
B+
Retailer 4
-
$351 USD
View
B+
Retailer 5
-
$655 USD
View
B+
Retailer 6
-
$684 USD
View
B+
Retailer 7
-
$715 USD
View
B
Retailer 8
-
$971 USD
£765 GBP
View
B+
Retailer 9
-
$996 USD
£784 GBP
View
B
Retailer 10
-
$1,050 USD
View
Most Expensive
B
Do Amore Diamonds
27-7F34645DF · Oct 28
$1,490 USD
View
10 more retailers have this diamond
Prices start from $155 USDSave up to $1,335 USD

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 Radiant
$155 USD