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Round|Lab Grown|IGI

1.05ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG687543289

Shape and cutting style on the report: Round brilliant

Certificate IGI LG687543289

Diamond specifications and retailer prices

From €132 EUR
As of November 5, 2026
Save €784 EUR (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €916 EUR at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG687543289 or 687543289. Listed at 22 retailers as of November 4, 2026, with prices from €132 to €916, a €784 spread on the same certified stone. Reve Diamonds lists it at €916. 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

1.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687543289
Dimensions6.50 × 6.57 × 4.05 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.50 mm6.57 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687543289
Side View
Table 57.0%Crown 34.4°Girdle: MediumPavilion 41.4°Culet: NoneDepth 62.0%

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: Nov 5
Current: €148 EUR|Low: €131 EUR|High: €916 EUR|Avg: €347 EUR|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Reve Diamonds
November 5, 2026
Retailer 7€132 EUR
Retailer 1€148 EUR
Retailer 16€153 EUR
Retailer 3€164 EUR
Retailer 5€164 EUR
Retailer 9€259 EUR
Retailer 10€280 EUR
Retailer 4€302 EUR
Retailer 13€321 EUR
Retailer 15€365 EUR
Retailer 2€382 EUR
Retailer 14€433 EUR
Retailer 17€437 EUR
Retailer 8€526 EUR
Retailer 12€556 EUR
Retailer 6€575 EUR
Retailer 11€762 EUR
Reve Diamonds€916 EUR

45 data points across 18 retailers

22 retailers€132 EUR to €916 EUR

Retailer 1
-
€131 EUR
Price last confirmed 45 days ago
A
Retailer 2
-
€132 EUR
View
A
Retailer 3
-
€148 EUR
View
Final sale: no returns
A
Retailer 4
-
€153 EUR
View
Retailer 5
-
€160 EUR
View
Price last confirmed 45 days ago
Retailer 6
-
€164 EUR
View
Price last confirmed 12 days ago
A
Retailer 7
-
€164 EUR
View
A
Retailer 8
-
€259 EUR
View
A
Retailer 9
-
€280 EUR
View
B+
Retailer 10
-
€302 EUR
View
B+
Retailer 11
-
€321 EUR
View
Retailer 12
-
€365 EUR
View
Price last confirmed 12 days ago
B+
Retailer 13
-
€382 EUR
View
B+
Retailer 14
-
€433 EUR
View
Retailer 15
-
€437 EUR
View
Price last confirmed 16 days ago
B+
Retailer 16
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€442 EUR
View
Retailer 17
-
€522 EUR
View
Price last confirmed 46 days ago
B
Retailer 18
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€526 EUR
View
B
Retailer 19
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€556 EUR
View
B
Retailer 20
-
€575 EUR
View
B
Retailer 21
-
€762 EUR
View
Most Expensive
B
Reve Diamonds
679DF302F · Nov 4
€916 EUR
$1,028 USD
View
21 more retailers have this diamond
Prices start from €132 EURSave up to €784 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
1.05ct Round
€132 EUR