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Heart|Lab Grown|IGI

1.55ct F SI1 Heart Lab Grown Diamond

VG • F/SI1 • IGI LG594313111

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG594313111

Diamond specifications and retailer prices

From $268 USD
As of November 1, 2026
Save $1,812 USD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,080 USD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.55ct lab-grown heart diamond

This 1.55ct lab-grown heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG594313111 or 594313111. Listed at 13 retailers as of November 5, 2026, with prices from $268 to $2,080, a $1,812 spread on the same certified stone. Do Amore Diamonds lists it at $2,080. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
F
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594313111
Dimensions7.06 × 7.96 × 4.77 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.
Top View
7.06 mm7.96 mm1.55 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594313111
Side View
Table 56.0%Crown 37°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 59.9%

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: Nov 1
Current: $2,080 USD|Low: $268 USD|High: $2,080 USD|Avg: $784 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$268 USD
Retailer 2$376 USD
Retailer 7$459 USD
Retailer 8$524 USD
Retailer 3$554 USD
Retailer 5$865 USD
Retailer 4$1,182 USD
Do Amore Diamonds$2,080 USD

45 data points across 8 retailers

13 retailers$268 USD to $2,080 USD

A
Cheapest Retailer
-
$268 USD
Retailer 2
-
$268 USD
View
Price last confirmed 35 days ago
A
Retailer 3
-
$268 USD
View
A
Retailer 4
-
$376 USD
View
A
Retailer 5
-
$380 USD
View
B+
Retailer 6
-
$459 USD
View
B+
Retailer 7
-
$524 USD
View
B+
Retailer 8
-
$554 USD
View
B
Retailer 9
-
$865 USD
View
B
Retailer 10
-
$951 USD
View
Retailer 11
-
$951 USD
View
Price last confirmed 38 days ago
B
Retailer 12
-
$1,182 USD
View
Most Expensive
B
Do Amore Diamonds
27-8E3FBB8DD · Nov 6
$2,080 USD
View
12 more retailers have this diamond
Prices start from $268 USDSave up to $1,812 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
1.55ct Heart
$268 USD