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Radiant|Lab Grown|IGI

1.29ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG675511885

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG675511885

Diamond specifications and retailer prices

From $443 AUD
As of November 4, 2026
Save $1,753 AUD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,714 AUD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.29ct lab-grown radiant diamond

This 1.29ct lab-grown radiant 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 very-good cut grade and certified by IGI LG675511885 or 675511885. Listed at 20 retailers as of November 4, 2026, with a 396% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.29
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675511885
Dimensions7.69 × 5.08 × 3.82 mm
L/W Ratio1.51
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
7.69 mm5.08 mm1.29 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675511885
Side View
Table 63.0%Crown 40.5°Girdle: MediumPavilion 36.3°Culet: NoneDepth 75.2%

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 4
Current: $2,714 AUD|Low: $426 AUD|High: $2,757 AUD|Avg: $1,203 AUD|-0.2%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 5, 2026
Retailer 18$443 AUD
Retailer 3$496 AUD
Retailer 7$514 AUD
Retailer 6$550 AUD
Retailer 19$550 AUD
Retailer 2$561 AUD
Retailer 9$713 AUD
Retailer 14$771 AUD
Retailer 17$894 AUD
Retailer 8$906 AUD
Retailer 15$947 AUD
Retailer 12$994 AUD
Retailer 10$1,259 AUD
Retailer 16$1,688 AUD
Retailer 5$1,767 AUD
Retailer 4$1,848 AUD
Retailer 20$2,070 AUD
Retailer 11$2,133 AUD
Retailer 13$2,196 AUD
Rare Carat$2,714 AUD

37 data points across 20 retailers

20 retailers$443 AUD to $2,196 AUD

A
Cheapest Retailer
-
$443 AUD
A
Retailer 2
-
$496 AUD
View
Final sale: no returns
A
Retailer 3
-
$514 AUD
View
Retailer 4
-
$550 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$550 AUD
View
A
Retailer 6
-
$561 AUD
View
Retailer 7
-
$713 AUD
View
Price last confirmed 37 days ago
A
Retailer 8
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$771 AUD
View
A
Retailer 9
-
$894 AUD
View
A
Retailer 10
-
$906 AUD
View
A
Retailer 11
-
$947 AUD
View
B+
Retailer 12
-
$1,259 AUD
View
B
Retailer 13
-
$1,688 AUD
View
B
Retailer 14
-
$1,767 AUD
View
B
Retailer 15
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$1,788 AUD
View
Retailer 16
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$1,848 AUD
View
Price last confirmed 36 days ago
Retailer 17
-
$2,051 AUD
View
Price last confirmed 30 days ago
B
Retailer 18
-
$2,070 AUD
View
B
Retailer 19
-
$2,196 AUD
View
Most Expensive
Rare Carat
NE675511885_l_675511885 · Oct 18
$2,714 AUD
$1,900 USD
View
Price last confirmed 18 days ago
19 more retailers have this diamond
Prices start from $443 AUDSave up to $1,753 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 Radiant
$443 AUD