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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 €171 EUR
$191 USD
As of October 29, 2026
Save €1,278 EUR (88%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €1,449 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 €171 to €1,449, a €1,278 spread on the same certified stone. Helzberg Diamonds lists it at €1,449. 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
Color
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: €1,449 EUR|Low: €166 EUR|High: €1,449 EUR|Avg: €551 EUR
Helzberg Diamonds
Retailer 2
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Retailer 23
October 31, 2026
Retailer 19€171 EUR
Retailer 12€191 EUR
Retailer 4€198 EUR
Retailer 5€211 EUR
Retailer 14€211 EUR
Retailer 16€286 EUR
Retailer 8€343 EUR
Retailer 21€358 EUR
Retailer 23€363 EUR
Retailer 18€384 EUR
Retailer 7€446 EUR
Retailer 2€464 EUR
Retailer 9€493 EUR
Retailer 17€507 EUR
Retailer 3€516 EUR
Retailer 13€679 EUR
Retailer 22€704 EUR
Retailer 11€728 EUR
Retailer 6€935 EUR
Retailer 20€994 EUR
Retailer 15€1,041 EUR
Retailer 10€1,208 EUR
Helzberg Diamonds€1,449 EUR

25 data points across 23 retailers

23 retailers€171 EUR to €1,449 EUR

A
Cheapest Retailer
-
€171 EUR
$191 USD
A
Retailer 2
-
€191 EUR
$213 USD
View
Final sale: no returns
A
Retailer 3
-
€198 EUR
$221 USD
View
A
Retailer 4
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€211 EUR
$236 USD
View
A
Retailer 5
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€211 EUR
$236 USD
View
A
Retailer 6
-
€286 EUR
$320 USD
View
Retailer 7
-
€343 EUR
£302 GBP
View
Price last confirmed 14 days ago
A
Retailer 8
-
€358 EUR
View
A
Retailer 9
-
€363 EUR
ZAR 6,553 ZAR
View
A
Retailer 10
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€384 EUR
£337 GBP
View
A
Retailer 11
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€446 EUR
$498 USD
View
A
Retailer 12
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€464 EUR
A$798 AUD
View
B+
Retailer 13
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€493 EUR
$551 USD
View
B+
Retailer 14
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€507 EUR
$566 USD
View
A
Retailer 15
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€516 EUR
A$887 AUD
View
B+
Retailer 16
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€679 EUR
$759 USD
View
B+
Retailer 17
-
€704 EUR
A$1,210 AUD
View
B+
Retailer 18
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€728 EUR
$813 USD
View
Retailer 19
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€935 EUR
$1,045 USD
View
Price last confirmed 10 days ago
B+
Retailer 20
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€994 EUR
£874 GBP
View
B
Retailer 21
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€1,041 EUR
$1,163 USD
View
Retailer 22
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€1,208 EUR
$1,350 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Helzberg Diamonds
ZXZOJMMHLNMO · Oct 29
€1,449 EUR
$1,619 USD
View
22 more retailers have this diamond
Prices start from €171 EURSave up to €1,278 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
€171 EUR