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Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG662441346

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG662441346

Diamond specifications and retailer prices

From €259 EUR
$289 USD
As of October 30, 2026
Save €2,606 EUR (91%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: €2,864 EUR at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1.57ct lab-grown radiant diamond

This 1.57ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG662441346 or 662441346. Listed at 32 retailers as of October 30, 2026, with prices from €259 to €2,864, a €2,606 spread on the same certified stone. Diamond Quarter lists it at €2,864. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.5°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662441346
Dimensions8.06 × 5.80 × 3.85 mm
L/W Ratio1.39
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
8.06 mm5.80 mm1.57 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662441346
Side View
Table 66.0%Crown 46.5°Girdle: Slightly ThickPavilion 34.1°Culet: NoneDepth 66.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €631 EUR|Low: €259 EUR|High: €3,034 EUR|Avg: €1,054 EUR|-2.5%
Retailer 1
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Retailer 22
November 1, 2026
Retailer 4€259 EUR
Retailer 2€308 EUR
Retailer 20€456 EUR
Retailer 13€470 EUR
Retailer 5€499 EUR
Retailer 10€556 EUR
Retailer 12€575 EUR
Retailer 19€608 EUR
Retailer 1€631 EUR
Retailer 6€756 EUR
Retailer 11€798 EUR
Retailer 18€824 EUR
Retailer 3€985 EUR
Retailer 8€1,233 EUR
Retailer 14€1,282 EUR
Retailer 7€1,319 EUR
Retailer 15€1,369 EUR
Retailer 21€1,420 EUR
Retailer 16€1,504 EUR
Retailer 9€2,291 EUR
Retailer 22€2,300 EUR
Retailer 17€2,632 EUR

39 data points across 22 retailers

32 retailers€259 EUR to €2,864 EUR

A
Cheapest Retailer
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€259 EUR
$289 USD
Retailer 2
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€259 EUR
$289 USD
View
Price last confirmed 25 days ago
Retailer 3
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€269 EUR
$301 USD
View
Price last confirmed 33 days ago
A
Retailer 4
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€308 EUR
$344 USD
View
Final sale: no returns
Retailer 5
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€312 EUR
$349 USD
View
Price last confirmed 35 days ago
Retailer 6
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€320 EUR
$358 USD
View
Price last confirmed 30 days ago
Retailer 7
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€329 EUR
$368 USD
View
Price last confirmed 34 days ago
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Retailer 8
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€456 EUR
$510 USD
View
A
Retailer 9
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€470 EUR
HK$4,100 HKD
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A
Retailer 10
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€499 EUR
$558 USD
View
A
Retailer 11
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€556 EUR
$621 USD
View
A
Retailer 12
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€575 EUR
View
A
Retailer 13
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€608 EUR
ZAR 10,972 ZAR
View
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Retailer 14
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€631 EUR
£555 GBP
View
A
Retailer 15
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€756 EUR
$845 USD
View
A
Retailer 16
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€798 EUR
$891 USD
View
A
Retailer 17
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€824 EUR
A$1,417 AUD
View
B+
Retailer 18
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€985 EUR
$1,100 USD
View
Retailer 19
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€1,138 EUR
$1,271 USD
View
Price last confirmed 22 days ago
B+
Retailer 20
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€1,138 EUR
$1,271 USD
View
Retailer 21
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€1,185 EUR
$1,324 USD
View
Price last confirmed 32 days ago
B+
Retailer 22
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€1,233 EUR
$1,377 USD
View
B+
Retailer 23
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€1,282 EUR
$1,433 USD
View
B+
Retailer 24
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€1,319 EUR
$1,473 USD
View
B+
Retailer 25
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€1,369 EUR
SGD 2,067 SGD
View
B+
Retailer 26
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€1,420 EUR
£1,249 GBP
View
B+
Retailer 27
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€1,504 EUR
A$2,585 AUD
View
B
Retailer 28
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€2,220 EUR
$2,480 USD
View
B
Retailer 29
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€2,291 EUR
$2,560 USD
View
B
Retailer 30
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€2,300 EUR
$2,570 USD
View
B
Retailer 31
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€2,632 EUR
$2,940 USD
View
Most Expensive
B
Diamond Quarter
1.57IFDLG46378CN · Oct 31
€2,864 EUR
£2,520 GBP
View
31 more retailers have this diamond
Prices start from €259 EURSave up to €2,606 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 Radiant
€259 EUR