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Round|Lab Grown|IGI

5.51ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG732570868

Shape and cutting style on the report: Round brilliant

Certificate IGI LG732570868

Diamond specifications and retailer prices

From €955 EUR
$1,067 USD
As of October 29, 2026
Save €6,532 EUR (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €8,477 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 5.51ct lab-grown round diamond

This 5.51ct lab-grown round sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG732570868 or 732570868. Listed at 15 retailers as of October 29, 2026, with a 684% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.51
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG732570868
Dimensions11.31 × 11.23 × 6.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.31 mm11.23 mm5.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG732570868
Side View
Table 58.0%Crown 35.6°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.7%

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 29
Current: €7,487 EUR|Low: €917 EUR|High: €8,477 EUR|Avg: €2,717 EUR|+22.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 9€955 EUR
Retailer 2€1,039 EUR
Retailer 4€1,069 EUR
Retailer 10€1,108 EUR
Retailer 7€1,262 EUR
Retailer 12€1,496 EUR
Retailer 5€1,767 EUR
Retailer 3€2,292 EUR
Retailer 11€2,664 EUR
Retailer 6€3,858 EUR
Retailer 8€4,185 EUR
Retailer 1€7,487 EUR

44 data points across 12 retailers

15 retailers€955 EUR to €7,487 EUR

A
Cheapest Retailer
-
€955 EUR
$1,067 USD
A
Retailer 2
-
€1,039 EUR
$1,161 USD
View
A
Retailer 3
-
€1,069 EUR
$1,194 USD
View
Final sale: no returns
A
Retailer 4
-
€1,108 EUR
$1,238 USD
View
Retailer 5
-
€1,108 EUR
$1,238 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
€1,262 EUR
$1,410 USD
View
B+
Retailer 7
-
€1,496 EUR
$1,671 USD
View
B+
Retailer 8
-
€1,767 EUR
£1,555 GBP
View
B+
Retailer 9
-
€1,984 EUR
$2,216 USD
View
B
Retailer 10
-
€2,292 EUR
$2,561 USD
View
B
Retailer 11
-
€2,664 EUR
$2,976 USD
View
B
Retailer 12
-
€3,858 EUR
$4,310 USD
View
Retailer 13
-
€4,185 EUR
$4,675 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
€7,487 EUR
$8,365 USD
View
Most Expensive
Do Amore Diamonds
27-5173B9BEF · Oct 31
€8,477 EUR
$9,470 USD
View
Price under review
14 more retailers have this diamond
Prices start from €955 EURSave up to €6,532 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
5.51ct Round
€955 EUR