Heart|Lab Grown|IGI

1.54ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818667577

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818667577

Diamond specifications and retailer prices

From $621 USD
As of November 2, 2026
Save $3,609 USD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,230 USD at With Clarity · As of November 2, 2026
View at With Clarity

About this 1.54ct lab-grown heart diamond

This 1.54ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818667577 or 818667577. Listed at 18 retailers as of November 2, 2026, with prices from $621 to $4,230, a $3,609 spread on the same certified stone. With Clarity lists it at $4,230. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818667577
Dimensions6.84 × 7.93 × 4.88 mm
L/W Ratio1.16
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
6.84 mm7.93 mm1.54 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818667577
Side View
Table 55.0%Crown 36.5°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $621 USD|Low: $621 USD|High: $4,940 USD|Avg: $1,979 USD|-27.2%
Retailer 1
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
With Clarity
November 2, 2026
Retailer 1$621 USD
Retailer 3$713 USD
Retailer 14$761 USD
Retailer 10$830 USD
Retailer 15$940 USD
Retailer 2$1,167 USD
Retailer 9$1,216 USD
Retailer 13$1,239 USD
Retailer 5$1,385 USD
Retailer 7$1,768 USD
Retailer 16$2,138 USD
Retailer 6$2,502 USD
Retailer 4$2,624 USD
Retailer 8$2,984 USD
Retailer 11$3,204 USD
Retailer 12$3,490 USD
With Clarity$4,230 USD

33 data points across 17 retailers

18 retailers$621 USD to $4,230 USD

A+
Cheapest Retailer
-
$621 USD
A
Retailer 2
-
$713 USD
View
A
Retailer 3
-
$761 USD
View
Retailer 4
-
$771 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$830 USD
View
Final sale: no returns
A
Retailer 6
-
$940 USD
View
A
Retailer 7
-
$1,167 USD
View
A
Retailer 8
-
$1,216 USD
£957 GBP
View
B+
Retailer 9
-
$1,239 USD
View
Retailer 10
-
$1,385 USD
ZAR 22,372 ZAR
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$1,768 USD
View
B+
Retailer 12
-
$2,138 USD
View
B+
Retailer 13
-
$2,502 USD
View
B+
Retailer 14
-
$2,624 USD
View
B
Retailer 15
-
$2,984 USD
SGD 4,032 SGD
View
B
Retailer 16
-
$3,204 USD
£2,523 GBP
View
B
Retailer 17
-
$3,490 USD
View
Most Expensive
B
With Clarity
818667577 · Nov 2
$4,230 USD
View
17 more retailers have this diamond
Prices start from $621 USDSave up to $3,609 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+
1.54ct Heart
$621 USD