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Round|Lab Grown|IGI

1.64ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG502118926

Shape and cutting style on the report: Round brilliant

Certificate IGI LG502118926

Diamond specifications and retailer prices

From $353 USD
As of October 29, 2026
Save $2,787 USD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,140 USD 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 LG502118926 or 502118926. Listed at 17 retailers as of October 29, 2026, with prices from $353 to $3,140, a $2,787 spread on the same certified stone. Do Amore Diamonds lists it at $3,140. 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 angle34.1°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG502118926
Dimensions7.58 × 7.63 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.58 mm7.63 mm1.64 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG502118926
Side View
Table 58.5%Crown 34.1°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.3%

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: Oct 29
Current: $3,140 USD|Low: $353 USD|High: $3,140 USD|Avg: $959 USD|+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
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 16$353 USD
Retailer 13$410 USD
Retailer 10$432 USD
Retailer 4$438 USD
Retailer 12$438 USD
Retailer 17$541 USD
Retailer 5$590 USD
Retailer 6$740 USD
Retailer 8$758 USD
Retailer 14$773 USD
Retailer 2$783 USD
Retailer 9$849 USD
Retailer 15$1,284 USD
Retailer 7$1,325 USD
Retailer 3$1,554 USD
Retailer 11$1,899 USD
Do Amore Diamonds$3,140 USD

12 data points across 17 retailers

17 retailers$353 USD to $3,140 USD

A
Cheapest Retailer
-
$353 USD
A
Retailer 2
-
$410 USD
View
B+
Retailer 3
-
$432 USD
View
A
Retailer 4
-
$438 USD
View
A
Retailer 5
-
$438 USD
View
A
Retailer 6
-
$541 USD
View
A
Retailer 7
-
$590 USD
View
Retailer 8
-
$740 USD
View
Price last confirmed 10 days ago
A
Retailer 9
-
$758 USD
View
A
Retailer 10
-
$773 USD
View
A
Retailer 11
-
$783 USD
£616 GBP
View
A
Retailer 12
-
$849 USD
View
A
Retailer 13
-
$1,284 USD
View
A
Retailer 14
-
$1,325 USD
View
B+
Retailer 15
-
$1,554 USD
View
B+
Retailer 16
-
$1,899 USD
£1,495 GBP
View
Most Expensive
B
Do Amore Diamonds
27-DACD97C02 · Oct 31
$3,140 USD
View
16 more retailers have this diamond
Prices start from $353 USDSave up to $2,787 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 Round
$353 USD