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Round|Lab Grown|IGI

1.29ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG818644617

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818644617

Diamond specifications and retailer prices

From $513 NZD
As of November 3, 2026
Save $2,326 NZD (82%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,168 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818644617 or 818644617. Listed at 24 retailers as of November 3, 2026, with a 454% 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
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818644617
Dimensions6.99 × 7.04 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.99 mm7.04 mm1.29 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818644617
Side View
Table 59.0%Crown 33.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.2%

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: $2,540 NZD|Low: $513 NZD|High: $3,246 NZD|Avg: $1,429 NZD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 3$513 NZD
Retailer 4$573 NZD
Retailer 5$855 NZD
Retailer 2$914 NZD
Retailer 7$1,006 NZD
Retailer 10$1,024 NZD
Retailer 12$1,095 NZD
Retailer 6$1,109 NZD
Retailer 9$1,559 NZD
Retailer 11$1,648 NZD
Retailer 8$2,173 NZD
Retailer 1$2,540 NZD
Retailer 13$2,838 NZD

33 data points across 13 retailers

24 retailers$513 NZD to $2,838 NZD

A
Cheapest Retailer
-
$513 NZD
A
Retailer 2
-
$573 NZD
View
Final sale: no returns
A
Retailer 3
-
$594 NZD
View
A
Retailer 4
-
$635 NZD
View
Retailer 5
-
$635 NZD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$703 NZD
View
A
Retailer 7
-
$855 NZD
View
A
Retailer 8
-
$914 NZD
View
A
Retailer 9
-
$1,006 NZD
View
A
Retailer 10
-
$1,024 NZD
View
A
Retailer 11
-
$1,095 NZD
View
A
Retailer 12
-
$1,109 NZD
View
A
Retailer 13
-
$1,432 NZD
View
B+
Retailer 14
-
$1,559 NZD
View
B+
Retailer 15
-
$1,648 NZD
View
B+
Retailer 16
-
$2,042 NZD
View
B+
Retailer 17
-
$2,044 NZD
View
B+
Retailer 18
-
$2,129 NZD
View
B+
Retailer 19
-
$2,173 NZD
View
B+
Retailer 20
-
$2,264 NZD
View
B+
Retailer 21
-
$2,540 NZD
View
B
Retailer 22
-
$2,620 NZD
View
B+
Retailer 23
-
$2,838 NZD
View
Most Expensive
Queensmith
LG818644617 · Oct 27
$4,168 NZD
£1,850 GBP
View
Price last confirmed 8 days ago
23 more retailers have this diamond
Prices start from $513 NZDSave up to $2,326 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
$513 NZD