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Heart|Lab Grown|IGI

1.00ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG816611180

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816611180

Diamond specifications and retailer prices

From $377 USD
As of October 30, 2026
Save $1,943 USD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,320 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816611180 or 816611180. Listed at 18 retailers as of October 30, 2026, with prices from $377 to $2,320, a $1,943 spread on the same certified stone. Brilliant Earth lists it at $2,320. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816611180
Dimensions6.77 × 6.19 × 3.96 mm
L/W Ratio1.09
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.77 mm6.19 mm1.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816611180
Side View
Table 59.0%Crown 34.5°Girdle: STK-VTKPavilion 38.8°Culet: NoneDepth 58.5%

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 30
Current: $2,320 USD|Low: $304 USD|High: $2,630 USD|Avg: $1,086 USD|-11.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 4$377 USD
Retailer 7$570 USD
Retailer 11$588 USD
Retailer 13$588 USD
Retailer 6$675 USD
Retailer 10$718 USD
Retailer 2$749 USD
Retailer 3$948 USD
Retailer 8$1,026 USD
Retailer 5$1,386 USD
Retailer 12$1,630 USD
Retailer 9$1,683 USD
Brilliant Earth$2,320 USD

35 data points across 13 retailers

18 retailers$377 USD to $2,320 USD

A
Cheapest Retailer
-
$377 USD
Final sale: no returns
Retailer 2
-
$400 USD
View
Price last confirmed 23 days ago
Retailer 3
-
$448 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$496 USD
View
Price last confirmed 28 days ago
Retailer 5
-
$496 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$570 USD
View
B+
Retailer 7
-
$588 USD
View
B+
Retailer 8
-
$588 USD
View
B+
Retailer 9
-
$675 USD
€643 EUR
View
B+
Retailer 10
-
$718 USD
ZAR 11,596 ZAR
View
B+
Retailer 11
-
$749 USD
£590 GBP
View
B+
Retailer 12
-
$948 USD
View
B+
Retailer 13
-
$1,026 USD
View
B
Retailer 14
-
$1,386 USD
View
Retailer 15
-
$1,595 USD
View
Price last confirmed 31 days ago
B
Retailer 16
-
$1,630 USD
View
B
Retailer 17
-
$1,683 USD
£1,325 GBP
View
Most Expensive
B
Brilliant Earth
21018689A · Oct 31
$2,320 USD
View
17 more retailers have this diamond
Prices start from $377 USDSave up to $1,943 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
$377 USD