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Heart|Lab Grown|IGI

0.55ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG816612788

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816612788

Diamond specifications and retailer prices

From $309 USD
As of November 1, 2026
Save $1,131 USD (79%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,440 USD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 0.55ct lab-grown heart diamond

This 0.55ct lab-grown heart sits in the half to three-quarter carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816612788 or 816612788. Listed at 17 retailers as of November 1, 2026, with prices from $309 to $1,440, a $1,131 spread on the same certified stone. Reve Diamonds lists it at $1,440. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.55
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816612788
Dimensions5.66 × 5.08 × 3.30 mm
L/W Ratio1.11
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
5.66 mm5.08 mm0.55 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816612788
Side View
Table 58.0%Crown 36.1°Girdle: MediumPavilion 38.1°Culet: NoneDepth 58.3%

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: $605 USD|Low: $190 USD|High: $1,440 USD|Avg: $721 USD|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
November 1, 2026
Retailer 3$190 USD
Retailer 2$309 USD
Retailer 11$344 USD
Retailer 9$408 USD
Retailer 10$485 USD
Retailer 5$520 USD
Retailer 1$605 USD
Retailer 7$621 USD
Retailer 12$764 USD
Retailer 8$1,056 USD
Retailer 4$1,155 USD
Retailer 6$1,384 USD
Reve Diamonds$1,440 USD

32 data points across 13 retailers

17 retailers$309 USD to $1,440 USD

Retailer 1
-
$277 USD
Price last confirmed 24 days ago
A
Retailer 2
-
$309 USD
View
Final sale: no returns
Retailer 3
-
$321 USD
View
Price last confirmed 34 days ago
Retailer 4
-
$339 USD
View
Price last confirmed 37 days ago
Retailer 5
-
$344 USD
View
Price last confirmed 29 days ago
Retailer 6
-
$344 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
$408 USD
View
A
Retailer 8
-
$485 USD
View
B+
Retailer 9
-
$520 USD
View
B+
Retailer 10
-
$605 USD
£477 GBP
View
B+
Retailer 11
-
$621 USD
ZAR 10,040 ZAR
View
B+
Retailer 12
-
$764 USD
View
B
Retailer 13
-
$1,056 USD
View
Retailer 14
-
$1,105 USD
View
Price last confirmed 32 days ago
B
Retailer 15
-
$1,155 USD
View
B
Retailer 16
-
$1,384 USD
£1,090 GBP
View
Most Expensive
B
Reve Diamonds
328EB5872 · Nov 1
$1,440 USD
View
16 more retailers have this diamond
Prices start from $309 USDSave up to $1,131 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
0.55ct Heart
$309 USD