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Round|Lab Grown|IGI

1.29ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG783659904

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783659904

Diamond specifications and retailer prices

From $512 AUD
$359 USD
As of October 29, 2026
Save $2,313 AUD (82%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,825 AUD at Brilliant Earth · As of October 31, 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 LG783659904 or 783659904. Listed at 25 retailers as of October 29, 2026, with prices from $512 to $2,825, a $2,313 spread on the same certified stone. Brilliant Earth lists it at $2,825. 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 angle34.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783659904
Dimensions6.95 × 7.00 × 4.29 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
6.95 mm7.00 mm1.29 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783659904
Side View
Table 58.0%Crown 34.7°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.5%

Caratlytics Score

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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: $2,825 AUD|Low: $505 AUD|High: $3,753 AUD|Avg: $1,521 AUD|-24.7%
Brilliant Earth
Retailer 2
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Retailer 24
November 2, 2026
Retailer 17$512 AUD
Retailer 12$574 AUD
Retailer 7$594 AUD
Retailer 4$635 AUD
Retailer 11$635 AUD
Retailer 24$849 AUD
Retailer 14$853 AUD
Retailer 9$985 AUD
Retailer 2$1,025 AUD
Retailer 21$1,055 AUD
Retailer 22$1,092 AUD
Retailer 18$1,142 AUD
Retailer 5$1,186 AUD
Retailer 19$1,542 AUD
Retailer 3$1,587 AUD
Retailer 13$1,775 AUD
Retailer 23$1,998 AUD
Retailer 16$2,024 AUD
Retailer 6$2,042 AUD
Retailer 10$2,100 AUD
Retailer 15$2,427 AUD
Retailer 20$2,495 AUD
Retailer 8$2,501 AUD
Brilliant Earth$2,825 AUD

29 data points across 24 retailers

25 retailers$512 AUD to $2,825 AUD

A
Cheapest Retailer
-
$512 AUD
$359 USD
A
Retailer 2
-
$574 AUD
$402 USD
View
Final sale: no returns
A
Retailer 3
-
$594 AUD
$416 USD
View
Retailer 4
-
$635 AUD
$445 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$635 AUD
$445 USD
View
A
Retailer 6
-
$849 AUD
$595 USD
View
A
Retailer 7
-
$853 AUD
$598 USD
View
A
Retailer 8
-
$985 AUD
$690 USD
View
A
Retailer 9
-
$1,025 AUD
€684 EUR
View
A
Retailer 10
-
$1,055 AUD
View
A
Retailer 11
-
$1,092 AUD
ZAR 12,359 ZAR
View
A
Retailer 12
-
$1,142 AUD
£630 GBP
View
A
Retailer 13
-
$1,186 AUD
$831 USD
View
B+
Retailer 14
-
$1,542 AUD
View
B+
Retailer 15
-
$1,587 AUD
$1,112 USD
View
B+
Retailer 16
-
$1,775 AUD
View
Retailer 17
-
$1,913 AUD
$1,341 USD
View
Price last confirmed 11 days ago
B+
Retailer 18
-
$1,998 AUD
$1,400 USD
View
B+
Retailer 19
-
$2,024 AUD
SGD 1,917 SGD
View
B+
Retailer 20
-
$2,042 AUD
$1,431 USD
View
B+
Retailer 21
-
$2,100 AUD
$1,472 USD
View
B+
Retailer 22
-
$2,427 AUD
$1,701 USD
View
B+
Retailer 23
-
$2,495 AUD
£1,377 GBP
View
B+
Retailer 24
-
$2,501 AUD
$1,753 USD
View
Most Expensive
B
Brilliant Earth
18278646A · Oct 31
$2,825 AUD
$1,980 USD
View
24 more retailers have this diamond
Prices start from $512 AUDSave up to $2,313 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
$512 AUD