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Heart|Lab Grown|IGI

1.01ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG620421919

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG620421919

Diamond specifications and retailer prices

From $354 USD
As of November 1, 2026
Save $1,316 USD (79%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,670 USD at Brilliant Earth · As of October 27, 2026
View at Brilliant Earth

About this 1.01ct lab-grown heart diamond

This 1.01ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG620421919 or 620421919. Listed at 22 retailers as of October 27, 2026, with prices from $354 to $1,670, a $1,316 spread on the same certified stone. Brilliant Earth lists it at $1,670. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620421919
Dimensions6.24 × 6.81 × 4.02 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
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
6.24 mm6.81 mm1.01 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620421919
Side View
Table 57.0%Crown 34.9°Girdle: ThickPavilion 37.7°Culet: NoneDepth 59.0%

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: $1,470 USD|Low: $310 USD|High: $2,420 USD|Avg: $772 USD|-39.3%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 10$310 USD
Retailer 2$354 USD
Retailer 8$400 USD
Retailer 9$400 USD
Retailer 12$404 USD
Retailer 5$528 USD
Retailer 15$530 USD
Retailer 6$589 USD
Retailer 18$630 USD
Retailer 14$636 USD
Retailer 4$674 USD
Retailer 13$699 USD
Retailer 3$956 USD
Retailer 16$967 USD
Retailer 7$1,306 USD
Retailer 17$1,409 USD
Brilliant Earth$1,470 USD
Retailer 11$1,571 USD

34 data points across 18 retailers

22 retailers$354 USD to $1,670 USD

Retailer 1
-
$310 USD
Price last confirmed 30 days ago
A
Retailer 2
-
$354 USD
View
Final sale: no returns
Retailer 3
-
$375 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$400 USD
View
Price last confirmed 29 days ago
Retailer 5
-
$400 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$404 USD
£318 GBP
View
A
Retailer 7
-
$528 USD
View
A
Retailer 8
-
$530 USD
View
B+
Retailer 9
-
$589 USD
View
B+
Retailer 10
-
$630 USD
View
B+
Retailer 11
-
$636 USD
€606 EUR
View
B+
Retailer 12
-
$674 USD
ZAR 10,883 ZAR
View
B+
Retailer 13
-
$699 USD
£550 GBP
View
B+
Retailer 14
-
$956 USD
A$1,471 AUD
View
B+
Retailer 15
-
$967 USD
View
Retailer 16
-
$1,287 USD
View
Price last confirmed 31 days ago
B
Retailer 17
-
$1,306 USD
View
B
Retailer 18
-
$1,409 USD
View
Retailer 19
-
$1,423 USD
A$2,189 AUD
View
Price last confirmed 157 days ago
B
Retailer 20
-
$1,470 USD
View
B
Retailer 21
-
$1,571 USD
£1,237 GBP
View
Most Expensive
B
Brilliant Earth
11259346A · Oct 27
$1,670 USD
View
21 more retailers have this diamond
Prices start from $354 USDSave up to $1,316 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
$354 USD