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Round|Lab Grown|IGI

1.25ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG624403540

Shape and cutting style on the report: Round brilliant

Certificate IGI LG624403540

Diamond specifications and retailer prices

From $368 AUD
As of November 5, 2026
Save $2,077 AUD (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,445 AUD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG624403540 or 624403540. Listed at 24 retailers as of November 5, 2026, with prices from $368 to $2,445, a $2,077 spread on the same certified stone. Brilliant Earth lists it at $2,445. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG624403540
Dimensions6.89 × 6.85 × 4.27 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
6.89 mm6.85 mm1.25 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG624403540
Side View
Table 58.0%Crown 34.5°Girdle: ThickPavilion 41.2°Culet: NoneDepth 62.2%

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: $2,445 AUD|Low: $368 AUD|High: $2,707 AUD|Avg: $1,012 AUD|-9.7%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 19$368 AUD
Retailer 4$412 AUD
Retailer 11$426 AUD
Retailer 9$456 AUD
Retailer 5$614 AUD
Retailer 6$691 AUD
Retailer 2$731 AUD
Retailer 17$786 AUD
Retailer 12$815 AUD
Retailer 3$824 AUD
Retailer 13$857 AUD
Retailer 7$988 AUD
Retailer 16$1,400 AUD
Retailer 8$1,466 AUD
Retailer 10$1,540 AUD
Retailer 18$1,598 AUD
Retailer 15$1,615 AUD
Retailer 14$1,822 AUD
Brilliant Earth$2,445 AUD

32 data points across 19 retailers

24 retailers$368 AUD to $2,445 AUD

A
Cheapest Retailer
-
$368 AUD
A
Retailer 2
-
$412 AUD
View
Final sale: no returns
A
Retailer 3
-
$426 AUD
View
A
Retailer 4
-
$456 AUD
View
Retailer 5
-
$466 AUD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$614 AUD
View
A
Retailer 7
-
$691 AUD
View
A
Retailer 8
-
$731 AUD
View
A
Retailer 9
-
$786 AUD
View
A
Retailer 10
-
$815 AUD
View
A
Retailer 11
-
$824 AUD
View
A
Retailer 12
-
$857 AUD
View
B+
Retailer 13
-
$988 AUD
View
Retailer 14
-
$1,000 AUD
View
Price last confirmed 165 days ago
B+
Retailer 15
-
$1,164 AUD
View
B+
Retailer 16
-
$1,400 AUD
View
B
Retailer 17
-
$1,466 AUD
View
B
Retailer 18
-
$1,540 AUD
View
B
Retailer 19
-
$1,598 AUD
View
B
Retailer 20
-
$1,615 AUD
View
Retailer 21
-
$1,796 AUD
View
Price last confirmed 83 days ago
B
Retailer 22
-
$1,822 AUD
View
B
Retailer 23
-
$2,314 AUD
View
Most Expensive
B
Brilliant Earth
12499008A · Nov 5
$2,445 AUD
$1,680 USD
View
23 more retailers have this diamond
Prices start from $368 AUDSave up to $2,077 AUD

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
1.25ct Round
$368 AUD