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Round|Lab Grown|IGI

1.25ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG823694923

Shape and cutting style on the report: Round brilliant

Certificate IGI LG823694923

Diamond specifications and retailer prices

From $646 AUD
$453 USD
As of November 1, 2026
Save $3,006 AUD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,653 AUD at Brilliant Earth · As of November 2, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG823694923 or 823694923. Listed at 21 retailers as of November 1, 2026, with prices from $646 to $3,653, a $3,006 spread on the same certified stone. Brilliant Earth lists it at $3,653. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823694923
Dimensions6.87 × 6.91 × 4.26 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS 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
6.87 mm6.91 mm1.25 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823694923
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

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 1
Current: $3,653 AUD|Low: $646 AUD|High: $3,700 AUD|Avg: $1,753 AUD|+0.4%
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
Retailer 20
November 3, 2026
Retailer 3$646 AUD
Retailer 8$723 AUD
Retailer 9$723 AUD
Retailer 4$800 AUD
Retailer 20$877 AUD
Retailer 17$1,006 AUD
Retailer 6$1,173 AUD
Retailer 13$1,227 AUD
Retailer 10$1,254 AUD
Retailer 2$1,308 AUD
Retailer 14$1,381 AUD
Retailer 16$1,951 AUD
Retailer 18$2,048 AUD
Retailer 19$2,153 AUD
Retailer 12$2,539 AUD
Retailer 5$2,574 AUD
Retailer 7$2,619 AUD
Retailer 11$2,853 AUD
Retailer 15$2,941 AUD
Brilliant Earth$3,653 AUD

41 data points across 20 retailers

21 retailers$646 AUD to $3,653 AUD

A
Cheapest Retailer
-
$646 AUD
$453 USD
A
Retailer 2
-
$723 AUD
$507 USD
View
Final sale: no returns
A
Retailer 3
-
$723 AUD
$507 USD
View
A
Retailer 4
-
$800 AUD
$561 USD
View
Retailer 5
-
$800 AUD
$561 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$877 AUD
HK$4,800 HKD
View
A
Retailer 7
-
$1,006 AUD
$705 USD
View
A
Retailer 8
-
$1,173 AUD
$822 USD
View
B+
Retailer 9
-
$1,227 AUD
€819 EUR
View
A
Retailer 10
-
$1,254 AUD
$879 USD
View
B+
Retailer 11
-
$1,308 AUD
£722 GBP
View
B+
Retailer 12
-
$1,381 AUD
ZAR 15,635 ZAR
View
B+
Retailer 13
-
$1,951 AUD
View
B+
Retailer 14
-
$2,048 AUD
$1,435 USD
View
B
Retailer 15
-
$2,153 AUD
$1,509 USD
View
B+
Retailer 16
-
$2,539 AUD
SGD 2,405 SGD
View
B
Retailer 17
-
$2,574 AUD
$1,804 USD
View
B
Retailer 18
-
$2,619 AUD
$1,836 USD
View
B
Retailer 19
-
$2,853 AUD
$2,000 USD
View
B
Retailer 20
-
$2,941 AUD
£1,623 GBP
View
Most Expensive
B
Brilliant Earth
21061263A · Nov 2
$3,653 AUD
$2,560 USD
View
20 more retailers have this diamond
Prices start from $646 AUDSave up to $3,006 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
$646 AUD