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Round|Lab Grown|IGI

1.57ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG758503526

Shape and cutting style on the report: Round brilliant

Certificate IGI LG758503526

Diamond specifications and retailer prices

From €175 EUR
$196 USD
As of October 29, 2026
Save €831 EUR (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,006 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.57ct lab-grown round diamond

This 1.57ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG758503526 or 758503526. Listed at 12 retailers as of October 29, 2026, with prices from €175 to €1,006, a €831 spread on the same certified stone. MOH London lists it at €1,006. 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

1.57
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758503526
Dimensions7.48 × 7.46 × 4.54 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.48 mm7.46 mm1.57 ctG / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG758503526
Side View
Table 58.0%Crown 34.5°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.8%

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 29
Current: €1,006 EUR|Low: €166 EUR|High: €1,020 EUR|Avg: €453 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 4€175 EUR
Retailer 11€201 EUR
Retailer 6€215 EUR
Retailer 3€218 EUR
Retailer 13€366 EUR
Retailer 12€375 EUR
Retailer 2€392 EUR
Retailer 9€432 EUR
Retailer 10€448 EUR
Retailer 7€692 EUR
Retailer 8€695 EUR
Retailer 5€823 EUR
MOH London€1,006 EUR

41 data points across 13 retailers

12 retailers€175 EUR to €1,006 EUR

A
Cheapest Retailer
-
€175 EUR
$196 USD
A
Retailer 2
-
€201 EUR
$225 USD
View
A
Retailer 3
-
€215 EUR
$240 USD
View
Retailer 4
-
€218 EUR
$243 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
€366 EUR
View
B+
Retailer 6
-
€375 EUR
$419 USD
View
A
Retailer 7
-
€392 EUR
£345 GBP
View
A
Retailer 8
-
€432 EUR
$483 USD
View
A
Retailer 9
-
€448 EUR
$500 USD
View
B
Retailer 10
-
€692 EUR
$773 USD
View
B+
Retailer 11
-
€695 EUR
$776 USD
View
Most Expensive
B
MOH London
LG758503526 · Nov 1
€1,006 EUR
£885 GBP
View
11 more retailers have this diamond
Prices start from €175 EURSave up to €831 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 Round
€175 EUR