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Heart|Lab Grown|IGI

1.51ct F SI1 Heart Lab Grown Diamond

ID • F/SI1 • IGI LG826668003

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG826668003

Diamond specifications and retailer prices

From $215 USD
As of November 6, 2026
Save $1,026 USD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,241 USD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG826668003 or 826668003. Listed at 15 retailers as of November 6, 2026, with prices from $215 to $1,241, a $1,026 spread on the same certified stone. Reve Diamonds lists it at $1,241. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826668003
Dimensions7.91 × 7.02 × 4.67 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
7.91 mm7.02 mm1.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826668003
Side View
Table 54.0%Crown 34.3°Girdle: MED-STKPavilion 37.5°Culet: NoneDepth 59.0%

Caratlytics Score

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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 6
Current: $488 USD|Low: $201 USD|High: $1,670 USD|Avg: $606 USD|+6.3%
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
Reve Diamonds
November 6, 2026
Retailer 13$215 USD
Retailer 10$249 USD
Retailer 6$260 USD
Retailer 4$266 USD
Retailer 14$282 USD
Retailer 2$457 USD
Retailer 12$468 USD
Retailer 1$488 USD
Retailer 5$544 USD
Retailer 9$715 USD
Retailer 11$857 USD
Retailer 3$909 USD
Retailer 8$1,065 USD
Retailer 7$1,140 USD
Reve Diamonds$1,241 USD

45 data points across 15 retailers

15 retailers$215 USD to $1,241 USD

A
Cheapest Retailer
-
$215 USD
A
Retailer 2
-
$249 USD
View
Retailer 3
-
$260 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$266 USD
View
A
Retailer 5
-
$282 USD
View
Final sale: no returns
A
Retailer 6
-
$457 USD
View
B+
Retailer 7
-
$468 USD
View
B+
Retailer 8
-
$488 USD
View
B+
Retailer 9
-
$544 USD
View
B+
Retailer 10
-
$715 USD
View
B
Retailer 11
-
$857 USD
View
B
Retailer 12
-
$909 USD
View
B
Retailer 13
-
$1,065 USD
View
B
Retailer 14
-
$1,140 USD
View
Most Expensive
B
Reve Diamonds
2D5823DE9 · Nov 6
$1,241 USD
View
14 more retailers have this diamond
Prices start from $215 USDSave up to $1,026 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
1.51ct Heart
$215 USD