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Round|Lab Grown|IGI

1.18ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG757503999

Shape and cutting style on the report: Round brilliant

Certificate IGI LG757503999

Diamond specifications and retailer prices

From $173 USD
As of November 5, 2026
Save $907 USD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,080 USD at Rare Carat · As of November 4, 2026
View at Rare Carat

About this 1.18ct lab-grown round diamond

This 1.18ct 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 LG757503999 or 757503999. Listed at 16 retailers as of November 4, 2026, with prices from $173 to $1,080, a $907 spread on the same certified stone. Rare Carat lists it at $1,080. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG757503999
Dimensions6.82 × 6.86 × 4.13 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
6.82 mm6.86 mm1.18 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG757503999
Side View
Table 57.0%Crown 33.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.4%

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: Nov 5
Current: $1,080 USD|Low: $173 USD|High: $1,110 USD|Avg: $491 USD|-2.7%
Rare Carat
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 5, 2026
Retailer 11$173 USD
Retailer 13$193 USD
Retailer 4$201 USD
Retailer 14$215 USD
Retailer 6$302 USD
Retailer 10$371 USD
Retailer 2$379 USD
Retailer 12$462 USD
Retailer 9$524 USD
Retailer 3$691 USD
Retailer 8$730 USD
Retailer 5$745 USD
Retailer 7$1,002 USD
Rare Carat$1,080 USD

44 data points across 14 retailers

16 retailers$173 USD to $1,080 USD

A
Cheapest Retailer
-
$173 USD
A
Retailer 2
-
$193 USD
View
Final sale: no returns
A
Retailer 3
-
$201 USD
View
A
Retailer 4
-
$215 USD
View
Retailer 5
-
$217 USD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
$302 USD
View
A
Retailer 7
-
$371 USD
View
A
Retailer 8
-
$379 USD
View
A
Retailer 9
-
$462 USD
View
A
Retailer 10
-
$524 USD
View
B+
Retailer 11
-
$588 USD
View
B+
Retailer 12
-
$691 USD
View
B+
Retailer 13
-
$730 USD
View
B+
Retailer 14
-
$745 USD
View
B
Retailer 15
-
$1,002 USD
View
Most Expensive
B
Rare Carat
GD17605_l_757503999 · Nov 4
$1,080 USD
View
15 more retailers have this diamond
Prices start from $173 USDSave up to $907 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
1.18ct Round
$173 USD