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Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG700512156

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

Certificate IGI LG700512156

Diamond specifications and retailer prices

From €297 EUR
$332 USD
As of October 30, 2026
Save €2,008 EUR (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €2,305 EUR at Rare Carat · As of October 28, 2026
View at Rare Carat

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 LG700512156 or 700512156. Listed at 24 retailers as of October 28, 2026, with prices from €297 to €2,305, a €2,008 spread on the same certified stone. Rare Carat lists it at €2,305. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700512156
Dimensions8.59 × 5.74 × 3.70 mm
L/W Ratio1.50
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
8.59 mm5.74 mm1.57 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700512156
Side View
Table 63.0%Crown 39.2°Girdle: MediumPavilion 33°Culet: NoneDepth 64.5%

Caratlytics Score

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A+
Exceptional
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: €2,305 EUR|Low: €286 EUR|High: €2,314 EUR|Avg: €925 EUR|-0.4%
Rare Carat
Retailer 2
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Retailer 24
November 1, 2026
Retailer 3€297 EUR
Retailer 23€345 EUR
Retailer 22€354 EUR
Retailer 24€369 EUR
Retailer 14€424 EUR
Retailer 19€465 EUR
Retailer 7€519 EUR
Retailer 18€599 EUR
Retailer 11€601 EUR
Retailer 21€633 EUR
Retailer 13€660 EUR
Retailer 12€835 EUR
Retailer 20€859 EUR
Retailer 8€977 EUR
Retailer 5€1,081 EUR
Retailer 4€1,185 EUR
Retailer 15€1,224 EUR
Retailer 17€1,233 EUR
Retailer 16€1,233 EUR
Retailer 10€1,393 EUR
Retailer 9€1,446 EUR
Retailer 2€1,477 EUR
Retailer 6€1,530 EUR
Rare Carat€2,305 EUR

32 data points across 24 retailers

24 retailers€297 EUR to €2,305 EUR

A+
Cheapest Retailer
-
€297 EUR
$332 USD
A
Retailer 2
-
€345 EUR
$385 USD
View
A
Retailer 3
-
€354 EUR
$396 USD
View
Final sale: no returns
A
Retailer 4
-
€369 EUR
$412 USD
View
A
Retailer 5
-
€424 EUR
HK$3,700 HKD
View
A
Retailer 6
-
€465 EUR
$520 USD
View
A
Retailer 7
-
€519 EUR
$580 USD
View
A
Retailer 8
-
€599 EUR
View
A
Retailer 9
-
€601 EUR
$671 USD
View
A
Retailer 10
-
€633 EUR
ZAR 11,431 ZAR
View
A
Retailer 11
-
€660 EUR
£581 GBP
View
A
Retailer 12
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€835 EUR
$933 USD
View
A
Retailer 13
-
€859 EUR
A$1,477 AUD
View
A
Retailer 14
-
€977 EUR
$1,092 USD
View
B+
Retailer 15
-
€1,081 EUR
$1,208 USD
View
B+
Retailer 16
-
€1,185 EUR
$1,324 USD
View
B+
Retailer 17
-
€1,224 EUR
$1,368 USD
View
B+
Retailer 18
-
€1,233 EUR
$1,377 USD
View
B+
Retailer 19
-
€1,233 EUR
SGD 1,862 SGD
View
B+
Retailer 20
-
€1,393 EUR
$1,556 USD
View
B+
Retailer 21
-
€1,446 EUR
$1,615 USD
View
B+
Retailer 22
-
€1,477 EUR
£1,299 GBP
View
Retailer 23
-
€1,530 EUR
A$2,629 AUD
View
Price last confirmed 25 days ago
Most Expensive
B
Rare Carat
2186-12-614 · Oct 28
€2,305 EUR
$2,575 USD
View
23 more retailers have this diamond
Prices start from €297 EURSave up to €2,008 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
€297 EUR