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Heart|Lab Grown|IGI

1.54ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG598311827

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG598311827

Diamond specifications and retailer prices

From €212 EUR
$237 USD
As of October 30, 2026
Save €925 EUR (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,137 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.54ct lab-grown heart diamond

This 1.54ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG598311827 or 598311827. Listed at 16 retailers as of October 30, 2026, with prices from €212 to €1,137, a €925 spread on the same certified stone. Brilliant Earth lists it at €1,137. 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

1.54
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598311827
Dimensions8.00 × 6.85 × 4.75 mm
L/W Ratio1.17
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
8.00 mm6.85 mm1.54 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598311827
Side View
Table 60.0%Crown 36.8°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 59.4%

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: €1,137 EUR|Low: €204 EUR|High: €2,726 EUR|Avg: €739 EUR|-32.1%
Brilliant Earth
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
Retailer 17
October 30, 2026
Retailer 14€212 EUR
Retailer 17€245 EUR
Retailer 12€246 EUR
Retailer 13€263 EUR
Retailer 4€309 EUR
Retailer 3€371 EUR
Retailer 6€467 EUR
Retailer 5€489 EUR
Retailer 2€498 EUR
Retailer 8€576 EUR
Retailer 9€738 EUR
Retailer 15€846 EUR
Retailer 16€849 EUR
Retailer 7€890 EUR
Retailer 11€959 EUR
Retailer 10€1,056 EUR
Brilliant Earth€1,137 EUR

41 data points across 17 retailers

16 retailers€212 EUR to €1,137 EUR

A
Cheapest Retailer
-
€212 EUR
$237 USD
A
Retailer 2
-
€245 EUR
$274 USD
View
Final sale: no returns
A
Retailer 3
-
€246 EUR
$275 USD
View
A
Retailer 4
-
€263 EUR
$294 USD
View
A
Retailer 5
-
€309 EUR
HK$2,700 HKD
View
B+
Retailer 6
-
€371 EUR
$415 USD
View
B+
Retailer 7
-
€467 EUR
$522 USD
View
B+
Retailer 8
-
€489 EUR
$546 USD
View
B+
Retailer 9
-
€498 EUR
£438 GBP
View
B+
Retailer 10
-
€576 EUR
$644 USD
View
B
Retailer 11
-
€846 EUR
$945 USD
View
B
Retailer 12
-
€849 EUR
$948 USD
View
B
Retailer 13
-
€890 EUR
SGD 1,344 SGD
View
B
Retailer 14
-
€959 EUR
A$1,648 AUD
View
B
Retailer 15
-
€1,056 EUR
£929 GBP
View
Most Expensive
B
Brilliant Earth
8062596A · Oct 30
€1,137 EUR
$1,270 USD
View
15 more retailers have this diamond
Prices start from €212 EURSave up to €925 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
1.54ct Heart
€212 EUR