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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 $503 NZD
As of November 4, 2026
Save $2,091 NZD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,156 NZD 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 1, 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: $3,156 NZD|Low: $484 NZD|High: $3,174 NZD|Avg: $1,354 NZD|-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 4, 2026
Retailer 17$503 NZD
Retailer 4$562 NZD
Retailer 6$585 NZD
Retailer 3$624 NZD
Retailer 16$624 NZD
Retailer 13$645 NZD
Retailer 15$857 NZD
Retailer 10$907 NZD
Retailer 8$1,072 NZD
Retailer 11$1,076 NZD
Retailer 2$1,092 NZD
Retailer 14$1,920 NZD
Retailer 5$2,009 NZD
Retailer 9$2,438 NZD
Retailer 12$2,503 NZD
Retailer 7$2,594 NZD
Rare Carat$3,156 NZD

43 data points across 17 retailers

17 retailers$503 NZD to $2,594 NZD

A
Cheapest Retailer
-
$503 NZD
A
Retailer 2
-
$562 NZD
View
Final sale: no returns
A
Retailer 3
-
$585 NZD
View
A
Retailer 4
-
$624 NZD
View
Retailer 5
-
$624 NZD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$857 NZD
View
A
Retailer 7
-
$907 NZD
View
A
Retailer 8
-
$1,072 NZD
View
A
Retailer 9
-
$1,076 NZD
View
A
Retailer 10
-
$1,092 NZD
View
A
Retailer 11
-
$1,549 NZD
View
B+
Retailer 12
-
$1,920 NZD
View
B+
Retailer 13
-
$2,009 NZD
View
B+
Retailer 14
-
$2,096 NZD
View
B+
Retailer 15
-
$2,503 NZD
View
B+
Retailer 16
-
$2,594 NZD
View
Most Expensive
Rare Carat
SS20491_l_758581818 · Oct 21
$3,156 NZD
$1,775 USD
View
Price last confirmed 13 days ago
16 more retailers have this diamond
Prices start from $503 NZDSave up to $2,091 NZD

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
$503 NZD