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Heart|Lab Grown|IGI

1.00ct F SI1 Heart Lab Grown Diamond

ID • F/SI1 • IGI LG805643885

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG805643885

Diamond specifications and retailer prices

From $164 USD
As of November 6, 2026
Save $688 USD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $852 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG805643885 or 805643885. Listed at 17 retailers as of November 4, 2026, with prices from $164 to $852, a $688 spread on the same certified stone. MOH London lists it at $852. 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

1.00
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.4°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805643885
Dimensions6.86 × 6.49 × 3.96 mm
L/W Ratio1.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.86 mm6.49 mm1.00 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG805643885
Side View
Table 65.0%Crown 35.4°Girdle: MED-THKPavilion 39.6°Culet: NoneDepth 57.7%

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 6
Current: $852 USD|Low: $144 USD|High: $890 USD|Avg: $395 USD|-3.3%
MOH London
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
November 6, 2026
Retailer 7$149 USD
Retailer 11$164 USD
Retailer 5$173 USD
Retailer 4$185 USD
Retailer 16$204 USD
Retailer 8$306 USD
Retailer 2$310 USD
Retailer 9$312 USD
Retailer 13$337 USD
Retailer 12$346 USD
Retailer 6$428 USD
Retailer 14$503 USD
Retailer 15$570 USD
Retailer 3$593 USD
Retailer 10$620 USD
MOH London$852 USD

43 data points across 16 retailers

17 retailers$164 USD to $852 USD

Retailer 1
-
$149 USD
Price last confirmed 14 days ago
A
Retailer 2
-
$164 USD
View
Final sale: no returns
Retailer 3
-
$173 USD
View
Price last confirmed 13 days ago
Retailer 4
-
$185 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$204 USD
View
A
Retailer 6
-
$306 USD
View
A
Retailer 7
-
$310 USD
View
A
Retailer 8
-
$312 USD
View
B+
Retailer 9
-
$337 USD
View
A
Retailer 10
-
$346 USD
View
Retailer 11
-
$428 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$472 USD
View
B+
Retailer 13
-
$503 USD
View
B
Retailer 14
-
$570 USD
View
Retailer 15
-
$593 USD
View
Price last confirmed 12 days ago
B+
Retailer 16
-
$620 USD
View
Most Expensive
B
MOH London
LG805643885 · Nov 4
$852 USD
£671 GBP
View
16 more retailers have this diamond
Prices start from $164 USDSave up to $688 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
1.00ct Heart
$164 USD