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Round|Lab Grown|IGI

1.05ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG734531337

Shape and cutting style on the report: Round brilliant

Certificate IGI LG734531337

Diamond specifications and retailer prices

From €172 EUR
$191 USD
As of October 29, 2026
Save €1,283 EUR (88%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €1,455 EUR at Helzberg Diamonds · As of October 29, 2026
View at Helzberg 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG734531337 or 734531337. Listed at 23 retailers as of October 29, 2026, with prices from €172 to €1,455, a €1,283 spread on the same certified stone. Helzberg Diamonds lists it at €1,455. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG734531337
Dimensions6.52 × 6.50 × 4.02 mm
L/W Ratio1.00
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
6.52 mm6.50 mm1.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG734531337
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 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: €1,455 EUR|Low: €166 EUR|High: €1,455 EUR|Avg: €545 EUR
Helzberg Diamonds
Retailer 2
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Retailer 23
October 29, 2026
Retailer 13€172 EUR
Retailer 12€191 EUR
Retailer 23€199 EUR
Retailer 4€212 EUR
Retailer 14€212 EUR
Retailer 16€288 EUR
Retailer 8€344 EUR
Retailer 18€359 EUR
Retailer 20€364 EUR
Retailer 2€385 EUR
Retailer 7€447 EUR
Retailer 6€466 EUR
Retailer 9€495 EUR
Retailer 22€518 EUR
Retailer 3€541 EUR
Retailer 21€682 EUR
Retailer 19€707 EUR
Retailer 11€731 EUR
Retailer 5€939 EUR
Retailer 17€997 EUR
Retailer 15€1,045 EUR
Retailer 10€1,213 EUR
Helzberg Diamonds€1,455 EUR

24 data points across 23 retailers

23 retailers€172 EUR to €1,455 EUR

A
Cheapest Retailer
-
€172 EUR
$191 USD
A
Retailer 2
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€191 EUR
$213 USD
View
Final sale: no returns
A
Retailer 3
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€199 EUR
$221 USD
View
A
Retailer 4
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€212 EUR
$236 USD
View
A
Retailer 5
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€212 EUR
$236 USD
View
A
Retailer 6
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€288 EUR
$320 USD
View
A
Retailer 7
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€344 EUR
£302 GBP
View
Price last confirmed 12 days ago
A
Retailer 8
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€359 EUR
View
A
Retailer 9
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€364 EUR
ZAR 6,553 ZAR
View
A
Retailer 10
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€385 EUR
£337 GBP
View
A
Retailer 11
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€447 EUR
$498 USD
View
A
Retailer 12
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€466 EUR
A$798 AUD
View
B+
Retailer 13
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€495 EUR
$551 USD
View
A
Retailer 14
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€518 EUR
A$887 AUD
View
B+
Retailer 15
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€541 EUR
$602 USD
View
B+
Retailer 16
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€682 EUR
$759 USD
View
B+
Retailer 17
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€707 EUR
A$1,210 AUD
View
B+
Retailer 18
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€731 EUR
$813 USD
View
B
Retailer 19
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€939 EUR
$1,045 USD
View
Price last confirmed 8 days ago
B+
Retailer 20
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€997 EUR
£874 GBP
View
B
Retailer 21
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€1,045 EUR
$1,163 USD
View
B
Retailer 22
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€1,213 EUR
$1,350 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Helzberg Diamonds
ZXZOJMMHLNMO · Oct 29
€1,455 EUR
$1,619 USD
View
22 more retailers have this diamond
Prices start from €172 EURSave up to €1,283 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
€172 EUR