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Princess|Lab Grown|IGI

1.29ct D IF Princess Lab Grown Diamond

ID • D/IF • IGI LG758581818

Shape and cutting style on the report: Princess cut

Certificate IGI LG758581818

Diamond specifications and retailer prices

From $404 AUD
As of November 4, 2026
Save $1,680 AUD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,536 AUD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.29ct lab-grown princess diamond

This 1.29ct lab-grown princess 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 LG758581818 or 758581818. Listed at 17 retailers as of November 4, 2026, with a 416% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceNone
Crown angle42.5°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758581818
Dimensions5.94 × 5.93 × 4.26 mm
L/W Ratio1.00
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
5.94 mm5.93 mm1.29 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG758581818
Side View
Table 68.0%Crown 42.5°Girdle: MediumPavilion 38.7°Culet: NoneDepth 71.8%

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 4
Current: $2,536 AUD|Low: $389 AUD|High: $2,550 AUD|Avg: $1,088 AUD|-0.6%
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
November 5, 2026
Retailer 17$404 AUD
Retailer 4$451 AUD
Retailer 6$470 AUD
Retailer 3$501 AUD
Retailer 16$501 AUD
Retailer 13$519 AUD
Retailer 15$689 AUD
Retailer 11$729 AUD
Retailer 8$861 AUD
Retailer 12$864 AUD
Retailer 2$877 AUD
Retailer 14$1,543 AUD
Retailer 5$1,614 AUD
Retailer 9$1,958 AUD
Retailer 10$2,006 AUD
Retailer 7$2,084 AUD
Rare Carat$2,536 AUD

44 data points across 17 retailers

17 retailers$404 AUD to $2,084 AUD

A
Cheapest Retailer
-
$404 AUD
A
Retailer 2
-
$451 AUD
View
Final sale: no returns
A
Retailer 3
-
$470 AUD
View
A
Retailer 4
-
$501 AUD
View
Retailer 5
-
$501 AUD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$689 AUD
View
A
Retailer 7
-
$729 AUD
View
A
Retailer 8
-
$861 AUD
View
A
Retailer 9
-
$864 AUD
View
A
Retailer 10
-
$877 AUD
View
A
Retailer 11
-
$1,244 AUD
View
B+
Retailer 12
-
$1,543 AUD
View
B+
Retailer 13
-
$1,614 AUD
View
B+
Retailer 14
-
$1,684 AUD
View
B+
Retailer 15
-
$2,006 AUD
View
B+
Retailer 16
-
$2,084 AUD
View
Most Expensive
Rare Carat
SS20491_l_758581818 · Oct 21
$2,536 AUD
$1,775 USD
View
Price last confirmed 15 days ago
16 more retailers have this diamond
Prices start from $404 AUDSave up to $1,680 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 Princess
$404 AUD