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Round|Lab Grown|IGI

1.05ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG576351378

Shape and cutting style on the report: Round brilliant

Certificate IGI LG576351378

Diamond specifications and retailer prices

From $205 USD
As of October 29, 2026
Save $982 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,187 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG576351378 or 576351378. Listed at 19 retailers as of October 29, 2026, with prices from $205 to $1,187, a $982 spread on the same certified stone. MOH London lists it at $1,187. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG576351378
Dimensions6.55 × 6.51 × 4.00 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
6.55 mm6.51 mm1.05 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG576351378
Side View
Table 58.0%Crown 34°Girdle: MediumPavilion 41°Culet: NoneDepth 61.5%

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: $1,187 USD|Low: $197 USD|High: $1,201 USD|Avg: $466 USD
MOH London
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
November 1, 2026
Retailer 11$205 USD
Retailer 14$229 USD
Retailer 5$237 USD
Retailer 6$254 USD
Retailer 13$254 USD
Retailer 12$358 USD
Retailer 2$438 USD
Retailer 8$445 USD
Retailer 7$466 USD
Retailer 3$491 USD
Retailer 9$620 USD
Retailer 4$816 USD
Retailer 10$819 USD
MOH London$1,187 USD

43 data points across 14 retailers

19 retailers$205 USD to $1,187 USD

A
Cheapest Retailer
-
$205 USD
A
Retailer 2
-
$229 USD
View
Final sale: no returns
A
Retailer 3
-
$237 USD
View
Retailer 4
-
$254 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$254 USD
View
A
Retailer 6
-
$282 USD
HK$2,200 HKD
View
A
Retailer 7
-
$358 USD
View
A
Retailer 8
-
$438 USD
ZAR 7,079 ZAR
View
A
Retailer 9
-
$445 USD
€424 EUR
View
B+
Retailer 10
-
$466 USD
£367 GBP
View
B+
Retailer 11
-
$491 USD
View
B+
Retailer 12
-
$493 USD
View
B+
Retailer 13
-
$620 USD
A$954 AUD
View
B+
Retailer 14
-
$688 USD
SGD 930 SGD
View
B
Retailer 15
-
$816 USD
View
B
Retailer 16
-
$819 USD
View
B
Retailer 17
-
$869 USD
View
Retailer 18
-
$999 USD
View
Price last confirmed 90 days ago
Most Expensive
B
MOH London
LG576351378 · Nov 1
$1,187 USD
£935 GBP
View
18 more retailers have this diamond
Prices start from $205 USDSave up to $982 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
$205 USD