Heart|Lab Grown|IGI

5.51ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG840638614

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840638614

Diamond specifications and retailer prices

From $1,370 USD
HK$10,700 HKD
As of October 30, 2026
Save $2,891 USD (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,261 USD at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.51ct lab-grown heart diamond

This 5.51ct lab-grown heart sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840638614 or 840638614. Listed at 9 retailers as of October 30, 2026, with prices from $1,370 to $4,261, a $2,891 spread on the same certified stone. With Clarity lists it at $4,261. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.51
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840638614
Dimensions11.28 × 12.14 × 7.09 mm
L/W Ratio1.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.28 mm12.14 mm5.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840638614
Side View
Table 62.0%Crown 33.6°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 58.4%

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 30
Current: $1,668 USD|Low: $1,370 USD|High: $4,261 USD|Avg: $2,629 USD|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
October 31, 2026
Retailer 4$1,370 USD
Retailer 5$1,539 USD
Retailer 1$1,668 USD
Retailer 6$1,848 USD
Retailer 2$1,892 USD
Retailer 8$2,992 USD
Retailer 3$3,931 USD
Retailer 7$4,035 USD
With Clarity$4,261 USD

23 data points across 9 retailers

9 retailers$1,370 USD to $4,261 USD

A
Cheapest Retailer
-
$1,370 USD
HK$10,700 HKD
A
Retailer 2
-
$1,539 USD
View
A
Retailer 3
-
$1,668 USD
£1,313 GBP
View
A
Retailer 4
-
$1,848 USD
View
A
Retailer 5
-
$1,892 USD
€1,802 EUR
View
B+
Retailer 6
-
$2,992 USD
View
B
Retailer 7
-
$3,931 USD
£3,095 GBP
View
B
Retailer 8
-
$4,035 USD
View
Most Expensive
B
With Clarity
840638614 · Oct 31
$4,261 USD
View
8 more retailers have this diamond
Prices start from $1,370 USDSave up to $2,891 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
5.51ct Heart
$1,370 USD