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Heart|Lab Grown|IGI

1.57ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG528207699

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG528207699

Diamond specifications and retailer prices

From €216 EUR
$241 USD
As of October 30, 2026
Save €971 EUR (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,186 EUR at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.57ct lab-grown heart diamond

This 1.57ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG528207699 or 528207699. Listed at 16 retailers as of October 30, 2026, with prices from €216 to €1,186, a €971 spread on the same certified stone. Reve Diamonds lists it at €1,186. 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

1.57
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528207699
Dimensions8.11 × 6.90 × 4.63 mm
L/W Ratio1.18
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
8.11 mm6.90 mm1.57 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG528207699
Side View
Table 58.5%Crown 35°Girdle: THK-VTKPavilion 38.4°Culet: NoneDepth 57.1%

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: €534 EUR|Low: €208 EUR|High: €1,186 EUR|Avg: €539 EUR|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Reve Diamonds
October 31, 2026
Retailer 13€216 EUR
Retailer 7€242 EUR
Retailer 16€251 EUR
Retailer 3€268 EUR
Retailer 14€268 EUR
Retailer 9€344 EUR
Retailer 2€360 EUR
Retailer 8€420 EUR
Retailer 6€447 EUR
Retailer 4€494 EUR
Retailer 10€508 EUR
Retailer 1€534 EUR
Retailer 15€861 EUR
Retailer 12€864 EUR
Retailer 5€908 EUR
Retailer 11€1,074 EUR
Reve Diamonds€1,186 EUR

40 data points across 17 retailers

16 retailers€216 EUR to €1,186 EUR

A
Cheapest Retailer
-
€216 EUR
$241 USD
A
Retailer 2
-
€242 EUR
$270 USD
View
Final sale: no returns
A
Retailer 3
-
€251 EUR
$280 USD
View
A
Retailer 4
-
€268 EUR
$299 USD
View
A
Retailer 5
-
€268 EUR
$299 USD
View
A
Retailer 6
-
€344 EUR
£303 GBP
View
B+
Retailer 7
-
€360 EUR
$402 USD
View
B+
Retailer 8
-
€447 EUR
$499 USD
View
B+
Retailer 9
-
€494 EUR
$552 USD
View
B+
Retailer 10
-
€508 EUR
£447 GBP
View
B+
Retailer 11
-
€534 EUR
A$918 AUD
View
B
Retailer 12
-
€861 EUR
$962 USD
View
B
Retailer 13
-
€864 EUR
$965 USD
View
B
Retailer 14
-
€908 EUR
$1,014 USD
View
B
Retailer 15
-
€1,074 EUR
£945 GBP
View
Most Expensive
B
Reve Diamonds
F23C86C3D · Oct 30
€1,186 EUR
$1,326 USD
View
15 more retailers have this diamond
Prices start from €216 EURSave up to €971 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
1.57ct Heart
€216 EUR