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Round|Lab Grown|IGI

1.29ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG783659904

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783659904

Diamond specifications and retailer prices

From $637 NZD
As of October 29, 2026
Save $2,876 NZD (82%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,513 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG783659904 or 783659904. Listed at 23 retailers as of October 29, 2026, with prices from $637 to $3,513, a $2,876 spread on the same certified stone. Brilliant Earth lists it at $3,513. 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 angle34.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783659904
Dimensions6.95 × 7.00 × 4.29 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
6.95 mm7.00 mm1.29 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783659904
Side View
Table 58.0%Crown 34.7°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.5%

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: Oct 29
Current: $3,513 NZD|Low: $628 NZD|High: $4,666 NZD|Avg: $1,882 NZD|-24.7%
Brilliant Earth
Retailer 2
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Retailer 24
November 3, 2026
Retailer 17$637 NZD
Retailer 12$713 NZD
Retailer 7$738 NZD
Retailer 4$789 NZD
Retailer 11$789 NZD
Retailer 24$1,056 NZD
Retailer 14$1,061 NZD
Retailer 9$1,224 NZD
Retailer 2$1,272 NZD
Retailer 21$1,311 NZD
Retailer 22$1,357 NZD
Retailer 18$1,417 NZD
Retailer 5$1,474 NZD
Retailer 19$1,916 NZD
Retailer 3$1,973 NZD
Retailer 13$2,207 NZD
Retailer 23$2,484 NZD
Retailer 16$2,516 NZD
Retailer 6$2,539 NZD
Retailer 10$2,610 NZD
Retailer 15$3,018 NZD
Retailer 20$3,101 NZD
Retailer 8$3,110 NZD
Brilliant Earth$3,513 NZD

29 data points across 24 retailers

23 retailers$637 NZD to $3,513 NZD

A
Cheapest Retailer
-
$637 NZD
A
Retailer 2
-
$738 NZD
View
Retailer 3
-
$789 NZD
View
Price last confirmed 11 days ago
Retailer 4
-
$789 NZD
View
Price last confirmed 9 days ago
Retailer 5
-
$1,056 NZD
View
Price last confirmed 5 days ago
A
Retailer 6
-
$1,061 NZD
View
A
Retailer 7
-
$1,224 NZD
View
A
Retailer 8
-
$1,272 NZD
View
A
Retailer 9
-
$1,311 NZD
View
Retailer 10
-
$1,357 NZD
View
Price last confirmed 8 days ago
A
Retailer 11
-
$1,417 NZD
View
B+
Retailer 12
-
$1,474 NZD
View
B+
Retailer 13
-
$1,916 NZD
View
B+
Retailer 14
-
$1,973 NZD
View
B+
Retailer 15
-
$2,207 NZD
View
B+
Retailer 16
-
$2,484 NZD
View
B+
Retailer 17
-
$2,516 NZD
View
Retailer 18
-
$2,539 NZD
View
Price last confirmed 9 days ago
B+
Retailer 19
-
$2,610 NZD
View
B
Retailer 20
-
$3,018 NZD
View
B+
Retailer 21
-
$3,101 NZD
View
B
Retailer 22
-
$3,110 NZD
View
Most Expensive
B
Brilliant Earth
18278646A · Oct 31
$3,513 NZD
$1,980 USD
View
22 more retailers have this diamond
Prices start from $637 NZDSave up to $2,876 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
$637 NZD