CaratHunter
Plans
Round|Lab Grown|IGI

1.55ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG816613920

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816613920

Diamond specifications and retailer prices

From €171 EUR
$192 USD
As of November 1, 2026
Save €821 EUR (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €992 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct 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 LG816613920 or 816613920. Listed at 15 retailers as of November 1, 2026, with prices from €171 to €992, a €821 spread on the same certified stone. MOH London lists it at €992. 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

1.55
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816613920
Dimensions7.46 × 7.40 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.46 mm7.40 mm1.55 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816613920
Side View
Table 55.0%Crown 34.8°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €992 EUR|Low: €171 EUR|High: €1,003 EUR|Avg: €490 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7€171 EUR
Retailer 9€212 EUR
Retailer 3€358 EUR
Retailer 10€370 EUR
Retailer 4€378 EUR
Retailer 5€385 EUR
Retailer 2€546 EUR
Retailer 6€633 EUR
Retailer 8€785 EUR
MOH London€992 EUR

42 data points across 10 retailers

15 retailers€171 EUR to €992 EUR

A
Cheapest Retailer
-
€171 EUR
$192 USD
A
Retailer 2
-
€199 EUR
$223 USD
View
Retailer 3
-
€212 EUR
$238 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
€212 EUR
$238 USD
View
A
Retailer 5
-
€358 EUR
View
B+
Retailer 6
-
€370 EUR
$415 USD
View
A
Retailer 7
-
€378 EUR
£334 GBP
View
A
Retailer 8
-
€385 EUR
£340 GBP
View
A
Retailer 9
-
€422 EUR
$473 USD
View
B+
Retailer 10
-
€546 EUR
$612 USD
View
B+
Retailer 11
-
€633 EUR
$710 USD
View
B
Retailer 12
-
€682 EUR
$765 USD
View
B+
Retailer 13
-
€730 EUR
$818 USD
View
B
Retailer 14
-
€785 EUR
$880 USD
View
Most Expensive
B
MOH London
LG816613920 · Nov 1
€992 EUR
£876 GBP
View
14 more retailers have this diamond
Prices start from €171 EURSave up to €821 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
1.55ct Round
€171 EUR