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Heart|Lab Grown|IGI

1.55ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG794612310

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG794612310

Diamond specifications and retailer prices

From $1,273 USD
As of October 31, 2026
Save $2,483 USD (66%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,756 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 1.55ct lab-grown heart diamond

This 1.55ct 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 LG794612310 or 794612310. Listed at 12 retailers as of October 31, 2026, with prices from $1,273 to $3,756, a $2,483 spread on the same certified stone. Taylor and Hart lists it at $3,756. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794612310
Dimensions8.09 × 7.03 × 4.76 mm
L/W Ratio1.15
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
8.09 mm7.03 mm1.55 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794612310
Side View
Table 59.0%Crown 35.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 58.8%

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 31
Current: $3,663 USD|Low: $1,237 USD|High: $4,351 USD|Avg: $2,488 USD|-12.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
November 1, 2026
Retailer 2$1,237 USD
Retailer 6$1,273 USD
Retailer 7$1,291 USD
Retailer 5$1,545 USD
Retailer 3$1,664 USD
Retailer 10$1,741 USD
Retailer 4$1,985 USD
Retailer 8$3,208 USD
Retailer 9$3,623 USD
Retailer 1$3,663 USD
Taylor and Hart$3,756 USD

45 data points across 11 retailers

12 retailers$1,273 USD to $3,756 USD

Retailer 1
-
$1,237 USD
Price last confirmed 15 days ago
A
Retailer 2
-
$1,273 USD
View
A
Retailer 3
-
$1,291 USD
View
B+
Retailer 4
-
$1,545 USD
View
B+
Retailer 5
-
$1,664 USD
£1,310 GBP
View
B+
Retailer 6
-
$1,741 USD
A$2,678 AUD
View
B+
Retailer 7
-
$1,985 USD
ZAR 32,072 ZAR
View
B
Retailer 8
-
$3,208 USD
View
B
Retailer 9
-
$3,379 USD
View
B
Retailer 10
-
$3,623 USD
SGD 4,896 SGD
View
B
Retailer 11
-
$3,663 USD
£2,884 GBP
View
Most Expensive
B
Taylor and Hart
D9QDAX3 · Oct 31
$3,756 USD
View
11 more retailers have this diamond
Prices start from $1,273 USDSave up to $2,483 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
1.55ct Heart
$1,273 USD