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Round|Lab Grown|IGI

1.29ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG720540510

Shape and cutting style on the report: Round brilliant

Certificate IGI LG720540510

Diamond specifications and retailer prices

From $389 NZD
As of November 3, 2026
Save $2,592 NZD (87%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $4,055 NZD at Queensmith · As of October 27, 2026
View at Queensmith

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG720540510 or 720540510. Listed at 23 retailers as of November 3, 2026, with a 667% 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
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720540510
Dimensions6.90 × 6.94 × 4.32 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
6.90 mm6.94 mm1.29 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720540510
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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 3
Current: $883 NZD|Low: $373 NZD|High: $4,435 NZD|Avg: $1,214 NZD|-15.9%
Retailer 1
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Retailer 22
November 5, 2026
Retailer 21$389 NZD
Retailer 7$435 NZD
Retailer 14$451 NZD
Retailer 3$481 NZD
Retailer 4$481 NZD
Retailer 22$545 NZD
Retailer 8$648 NZD
Retailer 19$830 NZD
Retailer 16$875 NZD
Retailer 1$883 NZD
Retailer 6$915 NZD
Retailer 17$1,176 NZD
Retailer 18$1,265 NZD
Retailer 5$1,279 NZD
Retailer 10$1,547 NZD
Retailer 15$1,556 NZD
Retailer 2$1,641 NZD
Retailer 11$1,655 NZD
Retailer 12$1,923 NZD
Retailer 20$2,147 NZD
Retailer 9$2,223 NZD
Retailer 13$2,980 NZD

40 data points across 22 retailers

23 retailers$389 NZD to $2,980 NZD

A
Cheapest Retailer
-
$389 NZD
A
Retailer 2
-
$435 NZD
View
Final sale: no returns
A
Retailer 3
-
$451 NZD
View
Retailer 4
-
$481 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$481 NZD
View
A
Retailer 6
-
$545 NZD
View
B+
Retailer 7
-
$648 NZD
View
A
Retailer 8
-
$830 NZD
View
A
Retailer 9
-
$875 NZD
View
A
Retailer 10
-
$883 NZD
View
A
Retailer 11
-
$915 NZD
View
A
Retailer 12
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$1,176 NZD
View
A
Retailer 13
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$1,265 NZD
View
A
Retailer 14
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$1,279 NZD
View
A
Retailer 15
-
$1,547 NZD
View
B+
Retailer 16
-
$1,556 NZD
View
B+
Retailer 17
-
$1,641 NZD
View
B+
Retailer 18
-
$1,655 NZD
View
B+
Retailer 19
-
$1,923 NZD
View
B+
Retailer 20
-
$2,147 NZD
View
B+
Retailer 21
-
$2,223 NZD
View
B+
Retailer 22
-
$2,980 NZD
View
Most Expensive
Queensmith
LG720540510 · Oct 27
$4,055 NZD
£1,800 GBP
View
Price last confirmed 8 days ago
22 more retailers have this diamond
Prices start from $389 NZDSave up to $2,592 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 Round
$389 NZD