Radiant|Lab Grown|IGI

1.29ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG754508761

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG754508761

Diamond specifications and retailer prices

From $461 USD
HK$3,600 HKD
As of October 31, 2026
Save $1,424 USD (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,885 USD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.29ct lab-grown radiant diamond

This 1.29ct lab-grown radiant 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 LG754508761 or 754508761. Listed at 14 retailers as of October 31, 2026, with prices from $461 to $1,885, a $1,424 spread on the same certified stone. Blue Nile lists it at $1,885. 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
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.9°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508761
Dimensions5.37 × 5.37 × 3.54 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
5.37 mm5.37 mm1.29 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508761
Side View
Table 62.0%Crown 46.9°Girdle: MED-STKPavilion 33.1°Culet: NoneDepth 65.9%

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 31
Current: $1,885 USD|Low: $394 USD|High: $2,550 USD|Avg: $1,140 USD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 10$480 USD
Retailer 12$548 USD
Retailer 2$560 USD
Retailer 5$595 USD
Retailer 3$673 USD
Retailer 4$755 USD
Retailer 9$1,294 USD
Retailer 11$1,349 USD
Retailer 7$1,359 USD
Retailer 8$1,845 USD
Retailer 6$1,870 USD
Blue Nile$1,885 USD

43 data points across 12 retailers

14 retailers$461 USD to $1,885 USD

A
Cheapest Retailer
-
$461 USD
HK$3,600 HKD
A
Retailer 2
-
$480 USD
View
A
Retailer 3
-
$548 USD
View
Retailer 4
-
$560 USD
€533 EUR
View
A
Retailer 5
-
$595 USD
£469 GBP
View
A
Retailer 6
-
$673 USD
View
B+
Retailer 7
-
$755 USD
View
B
Retailer 8
-
$1,256 USD
View
Retailer 9
-
$1,294 USD
A$1,991 AUD
View
Price last confirmed 23 days ago
B
Retailer 10
-
$1,349 USD
SGD 1,823 SGD
View
B+
Retailer 11
-
$1,359 USD
£1,070 GBP
View
Retailer 12
-
$1,845 USD
View
Price last confirmed 12 days ago
B
Retailer 13
-
$1,870 USD
View
Most Expensive
B
Blue Nile
28885049 · Oct 31
$1,885 USD
View
13 more retailers have this diamond
Prices start from $461 USDSave up to $1,424 USD

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 Radiant
$461 USD