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Heart|Lab Grown|IGI

1.59ct F SI1 Heart Lab Grown Diamond

ID • F/SI1 • IGI LG825687255

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825687255

Diamond specifications and retailer prices

From €235 EUR
$264 USD
As of October 25, 2026
Save €772 EUR (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,007 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.59ct lab-grown heart diamond

This 1.59ct 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 LG825687255 or 825687255. Listed at 13 retailers as of October 25, 2026, with prices from €235 to €1,007, a €772 spread on the same certified stone. Brilliant Earth lists it at €1,007. 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

1.59
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825687255
Dimensions8.27 × 6.94 × 4.89 mm
L/W Ratio1.19
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.27 mm6.94 mm1.59 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825687255
Side View
Table 67.0%Crown 30.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 59.1%

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 25
Current: €1,007 EUR|Low: €182 EUR|High: €1,623 EUR|Avg: €571 EUR|-37.9%
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
October 31, 2026
Retailer 12€190 EUR
Retailer 13€212 EUR
Retailer 11€220 EUR
Retailer 5€235 EUR
Retailer 7€302 EUR
Retailer 10€404 EUR
Retailer 8€433 EUR
Retailer 4€465 EUR
Retailer 6€604 EUR
Retailer 3€756 EUR
Retailer 2€757 EUR
Retailer 9€944 EUR
Brilliant Earth€1,007 EUR

39 data points across 13 retailers

13 retailers€235 EUR to €1,007 EUR

Retailer 1
-
€190 EUR
$213 USD
Price last confirmed 10 days ago
Retailer 2
-
€220 EUR
$247 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
€235 EUR
$264 USD
View
A
Retailer 4
-
€262 EUR
HK$2,300 HKD
View
A
Retailer 5
-
€302 EUR
£267 GBP
View
B+
Retailer 6
-
€404 EUR
$453 USD
View
A
Retailer 7
-
€433 EUR
£382 GBP
View
B+
Retailer 8
-
€465 EUR
$522 USD
View
B
Retailer 9
-
€604 EUR
$678 USD
View
B
Retailer 10
-
€756 EUR
$848 USD
View
B
Retailer 11
-
€757 EUR
SGD 1,147 SGD
View
Retailer 12
-
€944 EUR
£834 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
20868368A · Oct 31
€1,007 EUR
$1,130 USD
View
12 more retailers have this diamond
Prices start from €235 EURSave up to €772 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
1.59ct Heart
€235 EUR