Round|Lab Grown|IGI

1.29ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG839698431

Shape and cutting style on the report: Round brilliant

Certificate IGI LG839698431

Diamond specifications and retailer prices

From $290 USD
As of October 28, 2026
Save $2,210 USD (88%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,500 USD at Brilliant Earth · As of October 28, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG839698431 or 839698431. Listed at 14 retailers as of October 28, 2026, with prices from $290 to $2,500, a $2,210 spread on the same certified stone. Brilliant Earth lists it at $2,500. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839698431
Dimensions7.04 × 7.09 × 4.20 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
7.04 mm7.09 mm1.29 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839698431
Side View
Table 60.0%Crown 33.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
A+
Exceptional
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 28
Current: $614 USD|Low: $290 USD|High: $1,336 USD|Avg: $698 USD|+1.7%
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
October 29, 2026
Retailer 8$290 USD
Retailer 5$358 USD
Retailer 9$435 USD
Retailer 2$480 USD
Retailer 7$523 USD
Retailer 6$532 USD
Retailer 11$553 USD
Retailer 1$614 USD
Retailer 10$784 USD
Retailer 4$997 USD
Retailer 13$1,040 USD
Retailer 12$1,235 USD
Retailer 3$1,302 USD

23 data points across 13 retailers

14 retailers$290 USD to $2,500 USD

A+
Cheapest Retailer
-
$290 USD
Final sale: no returns
A
Retailer 2
-
$358 USD
HK$2,800 HKD
View
A
Retailer 3
-
$435 USD
View
A
Retailer 4
-
$480 USD
View
A
Retailer 5
-
$523 USD
£412 GBP
View
A
Retailer 6
-
$532 USD
€507 EUR
View
A
Retailer 7
-
$553 USD
ZAR 8,940 ZAR
View
A
Retailer 8
-
$614 USD
£484 GBP
View
A
Retailer 9
-
$784 USD
A$1,206 AUD
View
B+
Retailer 10
-
$997 USD
View
B+
Retailer 11
-
$1,040 USD
SGD 1,406 SGD
View
B+
Retailer 12
-
$1,235 USD
View
B+
Retailer 13
-
$1,302 USD
£1,025 GBP
View
Most Expensive
B
Brilliant Earth
21711149A · Oct 28
$2,500 USD
View
13 more retailers have this diamond
Prices start from $290 USDSave up to $2,210 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 Round
$290 USD