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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 €192 EUR
$215 USD
As of October 30, 2026
Save €915 EUR (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,107 EUR at Reve Diamonds · As of October 30, 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 October 30, 2026, with prices from €192 to €1,107, a €915 spread on the same certified stone. Reve Diamonds lists it at €1,107. 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: Oct 30
Current: €630 EUR|Low: €179 EUR|High: €1,542 EUR|Avg: €578 EUR|+12.9%
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
October 31, 2026
Retailer 9€192 EUR
Retailer 5€217 EUR
Retailer 6€232 EUR
Retailer 14€237 EUR
Retailer 10€251 EUR
Retailer 11€407 EUR
Retailer 7€417 EUR
Retailer 12€439 EUR
Retailer 3€486 EUR
Retailer 1€630 EUR
Retailer 4€746 EUR
Retailer 13€811 EUR
Retailer 2€935 EUR
Retailer 8€990 EUR
Reve Diamonds€1,107 EUR

41 data points across 15 retailers

15 retailers€192 EUR to €1,107 EUR

A
Cheapest Retailer
-
€192 EUR
$215 USD
A
Retailer 2
-
€217 EUR
$243 USD
View
A
Retailer 3
-
€232 EUR
$260 USD
View
A
Retailer 4
-
€237 EUR
$266 USD
View
A
Retailer 5
-
€251 EUR
$282 USD
View
Final sale: no returns
A
Retailer 6
-
€407 EUR
$457 USD
View
B+
Retailer 7
-
€417 EUR
$468 USD
View
B+
Retailer 8
-
€439 EUR
£388 GBP
View
B+
Retailer 9
-
€486 EUR
A$838 AUD
View
B+
Retailer 10
-
€630 EUR
$707 USD
View
B
Retailer 11
-
€746 EUR
$837 USD
View
B
Retailer 12
-
€811 EUR
$910 USD
View
B
Retailer 13
-
€935 EUR
£826 GBP
View
B
Retailer 14
-
€990 EUR
$1,110 USD
View
Most Expensive
B
Reve Diamonds
2D5823DE9 · Oct 30
€1,107 EUR
$1,241 USD
View
14 more retailers have this diamond
Prices start from €192 EURSave up to €915 EUR

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
€192 EUR