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Round|Lab Grown|IGI

1.29ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG817672995

Shape and cutting style on the report: Round brilliant

Certificate IGI LG817672995

Diamond specifications and retailer prices

From £185 GBP
$248 USD
As of November 1, 2026
Save £1,589 GBP (90%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,774 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore 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 LG817672995 or 817672995. Listed at 18 retailers as of November 1, 2026, with prices from £185 to £1,774, a £1,589 spread on the same certified stone. Do Amore Diamonds lists it at £1,774. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817672995
Dimensions6.97 × 7.00 × 4.33 mm
L/W Ratio1.00
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
6.97 mm7.00 mm1.29 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817672995
Side View
Table 60.0%Crown 35.1°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £1,774 GBP|Low: £178 GBP|High: £1,774 GBP|Avg: £622 GBP
Do Amore Diamonds
Retailer 2
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Retailer 19
November 3, 2026
Retailer 18£185 GBP
Retailer 7£200 GBP
Retailer 15£215 GBP
Retailer 13£230 GBP
Retailer 11£285 GBP
Retailer 16£309 GBP
Retailer 6£398 GBP
Retailer 19£401 GBP
Retailer 12£402 GBP
Retailer 2£448 GBP
Retailer 14£462 GBP
Retailer 3£593 GBP
Retailer 8£659 GBP
Retailer 9£738 GBP
Retailer 5£783 GBP
Retailer 17£945 GBP
Retailer 4£946 GBP
Retailer 10£1,356 GBP
Do Amore Diamonds£1,774 GBP

14 data points across 19 retailers

18 retailers£185 GBP to £1,774 GBP

A
Cheapest Retailer
-
£185 GBP
$248 USD
A
Retailer 2
-
£215 GBP
$288 USD
View
A
Retailer 3
-
£230 GBP
$308 USD
View
A
Retailer 4
-
£285 GBP
$382 USD
View
A
Retailer 5
-
£309 GBP
$414 USD
View
A
Retailer 6
-
£398 GBP
€509 EUR
View
A
Retailer 7
-
£401 GBP
$538 USD
View
A
Retailer 8
-
£402 GBP
View
A
Retailer 9
-
£448 GBP
View
A
Retailer 10
-
£462 GBP
$620 USD
View
A
Retailer 11
-
£593 GBP
A$1,224 AUD
View
Retailer 12
-
£659 GBP
$884 USD
View
Price last confirmed 7 days ago
Retailer 13
-
£738 GBP
$991 USD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
£783 GBP
$1,051 USD
View
B+
Retailer 15
-
£945 GBP
$1,269 USD
View
B+
Retailer 16
-
£946 GBP
$1,270 USD
View
B
Retailer 17
-
£1,356 GBP
$1,820 USD
View
Most Expensive
B
Do Amore Diamonds
27-DB0623CC5 · Nov 2
£1,774 GBP
$2,380 USD
View
17 more retailers have this diamond
Prices start from £185 GBPSave up to £1,589 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
£185 GBP