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Round|Lab Grown|IGI

1.29ct D IF Round Lab Grown Diamond

EX • D/IF • IGI LG839676416

Shape and cutting style on the report: Round brilliant

Certificate IGI LG839676416

Diamond specifications and retailer prices

From £258 GBP
$346 USD
As of November 1, 2026
Save £1,467 GBP (85%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,724 GBP at Yadav Diamonds · As of November 2, 2026
View at Yadav Diamonds

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG839676416 or 839676416. Listed at 25 retailers as of November 1, 2026, with prices from £258 to £1,724, a £1,467 spread on the same certified stone. Yadav Diamonds lists it at £1,724. 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
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839676416
Dimensions7.03 × 7.05 × 4.28 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.03 mm7.05 mm1.29 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839676416
Side View
Table 58.0%Crown 32.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.8%

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: Nov 1
Current: £574 GBP|Low: £258 GBP|High: £1,528 GBP|Avg: £684 GBP|+1.7%
Retailer 1
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Retailer 23
November 3, 2026
Retailer 3£258 GBP
Retailer 16£289 GBP
Retailer 11£300 GBP
Retailer 5£320 GBP
Retailer 15£320 GBP
Retailer 4£428 GBP
Retailer 21£432 GBP
Retailer 7£504 GBP
Retailer 12£505 GBP
Retailer 17£508 GBP
Retailer 18£552 GBP
Retailer 1£574 GBP
Retailer 8£616 GBP
Retailer 22£746 GBP
Retailer 23£777 GBP
Retailer 9£1,029 GBP
Retailer 10£1,036 GBP
Retailer 2£1,043 GBP
Retailer 14£1,060 GBP
Retailer 13£1,180 GBP
Retailer 6£1,238 GBP
Retailer 20£1,250 GBP
Retailer 19£1,520 GBP

27 data points across 23 retailers

25 retailers£258 GBP to £1,724 GBP

A
Cheapest Retailer
-
£258 GBP
$346 USD
A
Retailer 2
-
£289 GBP
$388 USD
View
Final sale: no returns
A
Retailer 3
-
£300 GBP
$402 USD
View
Retailer 4
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£320 GBP
$430 USD
View
Price last confirmed 9 days ago
A
Retailer 5
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£320 GBP
$430 USD
View
A
Retailer 6
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£362 GBP
HK$3,800 HKD
View
A
Retailer 7
-
£428 GBP
$575 USD
View
A
Retailer 8
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£432 GBP
$580 USD
View
A
Retailer 9
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£504 GBP
$676 USD
View
A
Retailer 10
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£505 GBP
€645 EUR
View
A
Retailer 11
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£508 GBP
View
A
Retailer 12
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£552 GBP
ZAR 11,966 ZAR
View
A
Retailer 13
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£574 GBP
View
A
Retailer 14
-
£616 GBP
$826 USD
View
B+
Retailer 15
-
£746 GBP
$1,001 USD
View
B+
Retailer 16
-
£777 GBP
A$1,605 AUD
View
B+
Retailer 17
-
£1,029 GBP
$1,381 USD
View
B+
Retailer 18
-
£1,036 GBP
SGD 1,878 SGD
View
B+
Retailer 19
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£1,043 GBP
$1,400 USD
View
B+
Retailer 20
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£1,060 GBP
$1,423 USD
View
B
Retailer 21
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£1,180 GBP
$1,583 USD
View
B
Retailer 22
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£1,238 GBP
$1,661 USD
View
B+
Retailer 23
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£1,250 GBP
View
B
Retailer 24
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£1,520 GBP
$2,040 USD
View
Most Expensive
B
Yadav Diamonds
13290818 · Nov 2
£1,724 GBP
$2,314 USD
View
24 more retailers have this diamond
Prices start from £258 GBPSave up to £1,467 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
£258 GBP