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Heart|Lab Grown|IGI

1.57ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG816616221

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816616221

Diamond specifications and retailer prices

From €609 EUR
$680 USD
As of October 30, 2026
Save €2,641 EUR (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €3,249 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816616221 or 816616221. Listed at 18 retailers as of October 30, 2026, with prices from €609 to €3,249, a €2,641 spread on the same certified stone. Brilliant Earth lists it at €3,249. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816616221
Dimensions8.06 × 7.02 × 4.86 mm
L/W Ratio1.15
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
8.06 mm7.02 mm1.57 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816616221
Side View
Table 59.0%Crown 39.7°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 60.3%

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 30
Current: €3,249 EUR|Low: €609 EUR|High: €4,502 EUR|Avg: €1,790 EUR|-27.8%
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
November 1, 2026
Retailer 6€609 EUR
Retailer 3€661 EUR
Retailer 14€705 EUR
Retailer 2€769 EUR
Retailer 12€864 EUR
Retailer 17€1,084 EUR
Retailer 10€1,130 EUR
Retailer 13€1,149 EUR
Retailer 11€1,297 EUR
Retailer 8€1,583 EUR
Retailer 15€1,984 EUR
Retailer 7€2,325 EUR
Retailer 4€2,434 EUR
Retailer 9€2,764 EUR
Retailer 5€2,940 EUR
Retailer 16€2,977 EUR
Brilliant Earth€3,249 EUR

36 data points across 17 retailers

18 retailers€609 EUR to €3,249 EUR

A
Cheapest Retailer
-
€609 EUR
$680 USD
A
Retailer 2
-
€661 EUR
$739 USD
View
A
Retailer 3
-
€705 EUR
$788 USD
View
Retailer 4
-
€730 EUR
$816 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
€769 EUR
$859 USD
View
Final sale: no returns
A
Retailer 6
-
€864 EUR
$965 USD
View
B+
Retailer 7
-
€1,084 EUR
$1,211 USD
View
B+
Retailer 8
-
€1,130 EUR
£994 GBP
View
B+
Retailer 9
-
€1,149 EUR
$1,284 USD
View
B+
Retailer 10
-
€1,297 EUR
ZAR 23,412 ZAR
View
B+
Retailer 11
-
€1,583 EUR
$1,769 USD
View
B+
Retailer 12
-
€1,984 EUR
$2,217 USD
View
B+
Retailer 13
-
€2,325 EUR
$2,598 USD
View
B
Retailer 14
-
€2,434 EUR
$2,719 USD
View
B
Retailer 15
-
€2,764 EUR
SGD 4,173 SGD
View
B
Retailer 16
-
€2,940 EUR
$3,285 USD
View
B
Retailer 17
-
€2,977 EUR
£2,619 GBP
View
Most Expensive
B
Brilliant Earth
21421995A · Oct 31
€3,249 EUR
$3,630 USD
View
17 more retailers have this diamond
Prices start from €609 EURSave up to €2,641 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
€609 EUR