Heart|Lab Grown|IGI

1.03ct D FL Heart Lab Grown Diamond

VG • D/FL • IGI LG818658618

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818658618

Diamond specifications and retailer prices

From $403 USD
As of October 30, 2026
Save $2,307 USD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,710 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.03ct lab-grown heart diamond

This 1.03ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG818658618 or 818658618. Listed at 18 retailers as of October 28, 2026, with prices from $403 to $2,710, a $2,307 spread on the same certified stone. Brilliant Earth lists it at $2,710. 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

1.03
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658618
Dimensions6.12 × 6.91 × 4.10 mm
L/W Ratio1.13
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
6.12 mm6.91 mm1.03 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658618
Side View
Table 56.0%Crown 38.7°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 59.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $2,710 USD|Low: $403 USD|High: $2,710 USD|Avg: $1,157 USD
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
October 30, 2026
Retailer 3$403 USD
Retailer 2$462 USD
Retailer 12$623 USD
Retailer 9$630 USD
Retailer 11$645 USD
Retailer 8$768 USD
Retailer 6$806 USD
Retailer 13$1,020 USD
Retailer 5$1,455 USD
Retailer 4$1,478 USD
Retailer 10$1,706 USD
Retailer 7$1,756 USD
Brilliant Earth$2,710 USD

26 data points across 13 retailers

18 retailers$403 USD to $2,710 USD

A
Cheapest Retailer
-
$403 USD
Final sale: no returns
Retailer 2
-
$418 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$462 USD
£364 GBP
View
Retailer 4
-
$467 USD
View
Price last confirmed 31 days ago
Retailer 5
-
$519 USD
View
Price last confirmed 27 days ago
Retailer 6
-
$519 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$623 USD
View
B+
Retailer 8
-
$630 USD
View
B+
Retailer 9
-
$645 USD
View
B+
Retailer 10
-
$768 USD
ZAR 12,412 ZAR
View
B+
Retailer 11
-
$806 USD
£635 GBP
View
B+
Retailer 12
-
$1,020 USD
View
B
Retailer 13
-
$1,455 USD
View
B
Retailer 14
-
$1,478 USD
View
Retailer 15
-
$1,668 USD
View
Price last confirmed 25 days ago
B
Retailer 16
-
$1,706 USD
View
B
Retailer 17
-
$1,756 USD
£1,383 GBP
View
Most Expensive
B
Brilliant Earth
21580679A · Oct 28
$2,710 USD
View
17 more retailers have this diamond
Prices start from $403 USDSave up to $2,307 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
1.03ct Heart
$403 USD