Round|Lab Grown|IGI

1.29ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG818664674

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818664674

Diamond specifications and retailer prices

From $434 USD
As of October 28, 2026
Save $2,326 USD (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,760 USD at Brilliant Earth · As of October 29, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818664674 or 818664674. Listed at 23 retailers as of October 28, 2026, with prices from $434 to $2,760, a $2,326 spread on the same certified stone. Brilliant Earth lists it at $2,760. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818664674
Dimensions7.00 × 6.97 × 4.30 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Cert comments
HEARTS & ARROWS 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
7.00 mm6.97 mm1.29 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818664674
Side View
Table 56.0%Crown 34.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $2,760 USD|Low: $434 USD|High: $2,840 USD|Avg: $1,095 USD|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 3$434 USD
Retailer 11$481 USD
Retailer 14$481 USD
Retailer 6$701 USD
Retailer 10$740 USD
Retailer 4$766 USD
Retailer 12$780 USD
Retailer 8$780 USD
Retailer 9$827 USD
Retailer 2$870 USD
Retailer 5$1,167 USD
Retailer 13$1,585 USD
Retailer 7$1,891 USD
Brilliant Earth$2,760 USD

40 data points across 14 retailers

23 retailers$434 USD to $2,760 USD

Retailer 1
-
$382 USD
Price last confirmed 59 days ago
Retailer 2
-
$389 USD
View
Price last confirmed 29 days ago
A
Retailer 3
-
$434 USD
View
Final sale: no returns
Retailer 4
-
$452 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$452 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$481 USD
View
A
Retailer 7
-
$481 USD
View
Retailer 8
-
$497 USD
View
Price last confirmed 30 days ago
Retailer 9
-
$501 USD
View
Price last confirmed 18 days ago
Retailer 10
-
$501 USD
View
Price last confirmed 28 days ago
A
Retailer 11
-
$701 USD
A$1,078 AUD
View
A
Retailer 12
-
$740 USD
View
A
Retailer 13
-
$766 USD
View
A
Retailer 14
-
$780 USD
View
A
Retailer 15
-
$780 USD
€743 EUR
View
A
Retailer 16
-
$827 USD
ZAR 13,365 ZAR
View
B+
Retailer 17
-
$870 USD
£685 GBP
View
B+
Retailer 18
-
$1,167 USD
View
Retailer 19
-
$1,292 USD
View
Price last confirmed 44 days ago
B+
Retailer 20
-
$1,585 USD
View
Retailer 21
-
$1,617 USD
View
Price last confirmed 30 days ago
B+
Retailer 22
-
$1,891 USD
£1,489 GBP
View
Most Expensive
B
Brilliant Earth
21490483A · Oct 29
$2,760 USD
View
22 more retailers have this diamond
Prices start from $434 USDSave up to $2,326 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
$434 USD