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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 £324 GBP
$434 USD
As of October 28, 2026
Save £1,736 GBP (84%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £2,060 GBP 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 24 retailers as of October 28, 2026, with prices from £324 to £2,060, a £1,736 spread on the same certified stone. Brilliant Earth lists it at £2,060. 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

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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: £2,060 GBP|Low: £324 GBP|High: £2,120 GBP|Avg: £817 GBP|-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£324 GBP
Retailer 11£359 GBP
Retailer 14£359 GBP
Retailer 6£523 GBP
Retailer 10£552 GBP
Retailer 4£572 GBP
Retailer 12£582 GBP
Retailer 8£582 GBP
Retailer 9£617 GBP
Retailer 2£649 GBP
Retailer 5£871 GBP
Retailer 13£1,183 GBP
Retailer 7£1,411 GBP
Brilliant Earth£2,060 GBP

40 data points across 14 retailers

24 retailers£324 GBP to £2,060 GBP

Retailer 1
-
£285 GBP
$382 USD
Price last confirmed 59 days ago
Retailer 2
-
£290 GBP
$389 USD
View
Price last confirmed 29 days ago
A
Retailer 3
-
£324 GBP
$434 USD
View
Final sale: no returns
Retailer 4
-
£325 GBP
$435 USD
View
Retailer 5
-
£337 GBP
$452 USD
View
Price last confirmed 38 days ago
Retailer 6
-
£337 GBP
$452 USD
View
Price last confirmed 17 days ago
A
Retailer 7
-
£359 GBP
$481 USD
View
A
Retailer 8
-
£359 GBP
$481 USD
View
Retailer 9
-
£371 GBP
$497 USD
View
Price last confirmed 30 days ago
Retailer 10
-
£374 GBP
$501 USD
View
Price last confirmed 18 days ago
Retailer 11
-
£374 GBP
$501 USD
View
Price last confirmed 28 days ago
A
Retailer 12
-
£523 GBP
A$1,078 AUD
View
A
Retailer 13
-
£552 GBP
$740 USD
View
A
Retailer 14
-
£572 GBP
$766 USD
View
A
Retailer 15
-
£582 GBP
$780 USD
View
A
Retailer 16
-
£582 GBP
€743 EUR
View
A
Retailer 17
-
£617 GBP
ZAR 13,365 ZAR
View
B+
Retailer 18
-
£649 GBP
View
B+
Retailer 19
-
£871 GBP
$1,167 USD
View
Retailer 20
-
£964 GBP
$1,292 USD
View
Price last confirmed 44 days ago
B+
Retailer 21
-
£1,183 GBP
$1,585 USD
View
Retailer 22
-
£1,207 GBP
$1,617 USD
View
Price last confirmed 30 days ago
B+
Retailer 23
-
£1,411 GBP
View
Most Expensive
B
Brilliant Earth
21490483A · Oct 29
£2,060 GBP
$2,760 USD
View
23 more retailers have this diamond
Prices start from £324 GBPSave up to £1,736 GBP

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
£324 GBP