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Round|Lab Grown|IGI

1.29ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG841678729

Shape and cutting style on the report: Round brilliant

Certificate IGI LG841678729

Diamond specifications and retailer prices

From $378 AUD
$265 USD
As of November 1, 2026
Save $1,905 AUD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,283 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.29ct lab-grown round diamond

This 1.29ct 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 LG841678729 or 841678729. Listed at 16 retailers as of November 1, 2026, with prices from $378 to $2,283, a $1,905 spread on the same certified stone. Brilliant Earth lists it at $2,283. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841678729
Dimensions6.97 × 7.02 × 4.27 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
6.97 mm7.02 mm1.29 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841678729
Side View
Table 58.0%Crown 33.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,283 AUD|Low: $378 AUD|High: $2,611 AUD|Avg: $1,190 AUD|-12.6%
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
November 2, 2026
Retailer 3$378 AUD
Retailer 15$438 AUD
Retailer 16$702 AUD
Retailer 9$743 AUD
Retailer 4$779 AUD
Retailer 10$785 AUD
Retailer 12$817 AUD
Retailer 13$1,140 AUD
Retailer 6$1,171 AUD
Retailer 5$1,438 AUD
Retailer 7$1,505 AUD
Retailer 11$1,694 AUD
Retailer 8$1,767 AUD
Retailer 2$1,876 AUD
Retailer 14$1,919 AUD
Brilliant Earth$2,283 AUD

13 data points across 16 retailers

16 retailers$378 AUD to $2,283 AUD

A
Cheapest Retailer
-
$378 AUD
$265 USD
A
Retailer 2
-
$438 AUD
$307 USD
View
A
Retailer 3
-
$702 AUD
$492 USD
View
A
Retailer 4
-
$743 AUD
£410 GBP
View
A
Retailer 5
-
$779 AUD
$546 USD
View
A
Retailer 6
-
$785 AUD
$550 USD
View
A
Retailer 7
-
$817 AUD
€545 EUR
View
A
Retailer 8
-
$1,140 AUD
View
B+
Retailer 9
-
$1,171 AUD
$821 USD
View
B+
Retailer 10
-
$1,438 AUD
$1,008 USD
View
B+
Retailer 11
-
$1,505 AUD
$1,055 USD
View
B+
Retailer 12
-
$1,694 AUD
View
B+
Retailer 13
-
$1,767 AUD
$1,238 USD
View
B+
Retailer 14
-
$1,876 AUD
£1,035 GBP
View
B
Retailer 15
-
$1,919 AUD
$1,345 USD
View
Most Expensive
B+
Brilliant Earth
22208645A · Nov 2
$2,283 AUD
$1,600 USD
View
15 more retailers have this diamond
Prices start from $378 AUDSave up to $1,905 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
1.29ct Round
$378 AUD