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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 $618 AUD
$434 USD
As of October 28, 2026
Save $3,311 AUD (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,929 AUD 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 $618 to $3,929, a $3,311 spread on the same certified stone. Brilliant Earth lists it at $3,929. 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
Colour
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

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 28
Current: $3,929 AUD|Low: $618 AUD|High: $4,042 AUD|Avg: $1,559 AUD|-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$618 AUD
Retailer 11$685 AUD
Retailer 14$685 AUD
Retailer 6$997 AUD
Retailer 10$1,053 AUD
Retailer 4$1,090 AUD
Retailer 12$1,110 AUD
Retailer 8$1,110 AUD
Retailer 9$1,178 AUD
Retailer 2$1,238 AUD
Retailer 5$1,661 AUD
Retailer 13$2,256 AUD
Retailer 7$2,692 AUD
Brilliant Earth$3,929 AUD

40 data points across 14 retailers

23 retailers$618 AUD to $3,929 AUD

Retailer 1
-
$544 AUD
$382 USD
Price last confirmed 59 days ago
Retailer 2
-
$554 AUD
$389 USD
View
Price last confirmed 28 days ago
A
Retailer 3
-
$618 AUD
$434 USD
View
Final sale: no returns
Retailer 4
-
$643 AUD
$452 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$643 AUD
$452 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$685 AUD
$481 USD
View
A
Retailer 7
-
$685 AUD
$481 USD
View
Retailer 8
-
$707 AUD
$497 USD
View
Price last confirmed 30 days ago
Retailer 9
-
$713 AUD
$501 USD
View
Price last confirmed 17 days ago
Retailer 10
-
$713 AUD
$501 USD
View
Price last confirmed 27 days ago
A
Retailer 11
-
$997 AUD
View
A
Retailer 12
-
$1,053 AUD
$740 USD
View
A
Retailer 13
-
$1,090 AUD
$766 USD
View
A
Retailer 14
-
$1,110 AUD
$780 USD
View
A
Retailer 15
-
$1,110 AUD
€743 EUR
View
A
Retailer 16
-
$1,178 AUD
ZAR 13,365 ZAR
View
B+
Retailer 17
-
$1,238 AUD
£685 GBP
View
B+
Retailer 18
-
$1,661 AUD
$1,167 USD
View
Retailer 19
-
$1,839 AUD
$1,292 USD
View
Price last confirmed 44 days ago
B+
Retailer 20
-
$2,256 AUD
$1,585 USD
View
Retailer 21
-
$2,302 AUD
$1,617 USD
View
Price last confirmed 30 days ago
B+
Retailer 22
-
$2,692 AUD
£1,489 GBP
View
Most Expensive
B
Brilliant Earth
21490483A · Oct 29
$3,929 AUD
$2,760 USD
View
22 more retailers have this diamond
Prices start from $618 AUDSave up to $3,311 AUD

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
$618 AUD