Heart|Lab Grown|IGI

1.01ct K SI1 Heart Lab Grown Diamond

ID • K/SI1 • IGI LG805683590

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG805683590

Diamond specifications and retailer prices

From $181 USD
As of November 6, 2026
Save $863 USD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,044 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.01ct lab-grown heart diamond

This 1.01ct lab-grown heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG805683590 or 805683590. Listed at 9 retailers as of November 5, 2026, with prices from $181 to $1,044, a $863 spread on the same certified stone. MOH London lists it at $1,044. 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

1.01
Carat
K
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805683590
Dimensions6.66 × 5.45 × 3.63 mm
L/W Ratio1.22
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa Light Brown
Top View
6.66 mm5.45 mm1.01 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805683590
Side View
Table 64.0%Crown 39.8°Girdle: STK-THKPavilion 36.8°Culet: NoneDepth 54.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $1,044 USD|Low: $173 USD|High: $1,110 USD|Avg: $496 USD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 5$181 USD
Retailer 9$209 USD
Retailer 6$224 USD
Retailer 8$224 USD
Retailer 2$380 USD
Retailer 3$465 USD
Retailer 11$520 USD
Retailer 10$538 USD
Retailer 7$720 USD
Retailer 4$760 USD
MOH London$1,044 USD

16 data points across 11 retailers

9 retailers$181 USD to $1,044 USD

A
Cheapest Retailer
-
$181 USD
A
Retailer 2
-
$209 USD
View
Retailer 3
-
$224 USD
View
Price last confirmed 12 days ago
B+
Retailer 4
-
$224 USD
View
A
Retailer 5
-
$380 USD
View
B+
Retailer 6
-
$538 USD
View
B+
Retailer 7
-
$720 USD
View
B+
Retailer 8
-
$760 USD
View
Most Expensive
B
MOH London
LG805683590 · Nov 5
$1,044 USD
£822 GBP
View
8 more retailers have this diamond
Prices start from $181 USDSave up to $863 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
1.01ct Heart
$181 USD