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Round|Lab Grown|IGI

1.63ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG425066630

Shape and cutting style on the report: Round brilliant

Certificate IGI LG425066630

Diamond specifications and retailer prices

From €931 EUR
$1,040 USD
As of October 31, 2026
Save €4,212 EUR (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €5,143 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.63ct lab-grown round diamond

This 1.63ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425066630 or 425066630. Listed at 12 retailers as of October 29, 2026, with prices from €931 to €5,143, a €4,212 spread on the same certified stone. MOH London lists it at €5,143. 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

1.63
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425066630
Dimensions7.50 × 7.47 × 4.72 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.50 mm7.47 mm1.63 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG425066630
Side View
Table 54.5%Crown 34.9°Girdle: ThickPavilion 40.9°Culet: NoneDepth 63.1%

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: Oct 31
Current: €5,143 EUR|Low: €931 EUR|High: €5,184 EUR|Avg: €2,882 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2€931 EUR
Retailer 6€1,544 EUR
Retailer 9€1,729 EUR
Retailer 7€1,791 EUR
Retailer 4€1,933 EUR
Retailer 10€1,942 EUR
Retailer 12€2,390 EUR
Retailer 8€2,812 EUR
Retailer 5€3,088 EUR
Retailer 11€4,905 EUR
Retailer 3€5,127 EUR
MOH London€5,143 EUR

17 data points across 12 retailers

12 retailers€931 EUR to €5,143 EUR

A
Cheapest Retailer
-
€931 EUR
$1,040 USD
B+
Retailer 2
-
€1,544 EUR
$1,725 USD
View
B+
Retailer 3
-
€1,680 EUR
$1,877 USD
View
B+
Retailer 4
-
€1,729 EUR
$1,932 USD
View
Final sale: no returns
B
Retailer 5
-
€1,791 EUR
$2,001 USD
View
Retailer 6
-
€1,791 EUR
$2,001 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
€1,942 EUR
$2,170 USD
View
B
Retailer 8
-
€2,812 EUR
$3,142 USD
View
B
Retailer 9
-
€3,088 EUR
$3,450 USD
View
B
Retailer 10
-
€3,357 EUR
$3,751 USD
View
B
Retailer 11
-
€4,905 EUR
$5,480 USD
View
Most Expensive
B
MOH London
LG425066630 · Oct 29
€5,143 EUR
£4,524 GBP
View
11 more retailers have this diamond
Prices start from €931 EURSave up to €4,212 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
1.63ct Round
€931 EUR