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Round|Lab Grown|IGI

1.05ct E IF Round Lab Grown Diamond

EX • E/IF • IGI LG725520111

Shape and cutting style on the report: Round brilliant

Certificate IGI LG725520111

Diamond specifications and retailer prices

From $191 USD
As of October 29, 2026
Save $989 USD (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,180 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 LG725520111 or 725520111. Listed at 23 retailers as of October 29, 2026, with prices from $191 to $1,180, a $989 spread on the same certified stone. Brilliant Earth lists it at $1,180. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG725520111
Dimensions6.59 × 6.56 × 3.97 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
6.59 mm6.56 mm1.05 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG725520111
Side View
Table 59.0%Crown 31.5°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
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: Oct 29
Current: $1,180 USD|Low: $185 USD|High: $1,350 USD|Avg: $597 USD|-12.6%
Brilliant Earth
Retailer 2
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Retailer 6
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Retailer 23
October 30, 2026
Retailer 5$191 USD
Retailer 11$213 USD
Retailer 23$221 USD
Retailer 12$236 USD
Retailer 14$236 USD
Retailer 16$320 USD
Retailer 7$383 USD
Retailer 17$400 USD
Retailer 18$406 USD
Retailer 13$429 USD
Retailer 4$498 USD
Retailer 3$519 USD
Retailer 9$551 USD
Retailer 2$566 USD
Retailer 19$577 USD
Retailer 8$645 USD
Retailer 6$759 USD
Retailer 10$813 USD
Retailer 21$930 USD
Retailer 22$1,045 USD
Retailer 20$1,106 USD
Retailer 15$1,163 USD
Brilliant Earth$1,180 USD

39 data points across 23 retailers

23 retailers$191 USD to $1,180 USD

A
Cheapest Retailer
-
$191 USD
A
Retailer 2
-
$213 USD
View
Final sale: no returns
A
Retailer 3
-
$221 USD
View
A
Retailer 4
-
$236 USD
View
A
Retailer 5
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$236 USD
View
A
Retailer 6
-
$320 USD
View
Retailer 7
-
$383 USD
£302 GBP
View
Price last confirmed 13 days ago
A
Retailer 8
-
$400 USD
€381 EUR
View
A
Retailer 9
-
$406 USD
ZAR 6,553 ZAR
View
A
Retailer 10
-
$429 USD
£337 GBP
View
A
Retailer 11
-
$498 USD
View
A
Retailer 12
-
$519 USD
A$798 AUD
View
B+
Retailer 13
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$551 USD
View
B+
Retailer 14
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$566 USD
View
B+
Retailer 15
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$577 USD
A$887 AUD
View
B+
Retailer 16
-
$645 USD
SGD 871 SGD
View
B+
Retailer 17
-
$759 USD
View
B+
Retailer 18
-
$813 USD
View
B
Retailer 19
-
$930 USD
£732 GBP
View
Retailer 20
-
$1,045 USD
View
Price last confirmed 9 days ago
B
Retailer 21
-
$1,106 USD
£871 GBP
View
B
Retailer 22
-
$1,163 USD
View
Most Expensive
B
Brilliant Earth
18208591A · Oct 30
$1,180 USD
View
22 more retailers have this diamond
Prices start from $191 USDSave up to $989 USD

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
$191 USD