Round|Lab Grown|IGI

1.29ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG818684916

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818684916

Diamond specifications and retailer prices

From £164 GBP
$219 USD
As of October 29, 2026
Save £777 GBP (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,171 GBP at Brilliant Earth · As of September 19, 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 D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818684916 or 818684916. Listed at 23 retailers as of October 29, 2026, with a 473% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818684916
Dimensions6.99 × 6.94 × 4.31 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.99 mm6.94 mm1.29 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818684916
Side View
Table 57.0%Crown 35.6°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.9%

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 29
Current: £1,171 GBP|Low: £158 GBP|High: £1,171 GBP|Avg: £481 GBP
Brilliant Earth
Retailer 2
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Retailer 12
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Retailer 18
October 30, 2026
Retailer 3£164 GBP
Retailer 4£184 GBP
Retailer 9£191 GBP
Retailer 7£204 GBP
Retailer 13£274 GBP
Retailer 17£325 GBP
Retailer 12£330 GBP
Retailer 14£350 GBP
Retailer 2£378 GBP
Retailer 6£419 GBP
Retailer 8£444 GBP
Retailer 15£498 GBP
Retailer 18£530 GBP
Retailer 10£655 GBP
Retailer 11£741 GBP
Retailer 16£821 GBP
Retailer 5£942 GBP
Brilliant Earth£1,171 GBP

43 data points across 18 retailers

23 retailers£164 GBP to £942 GBP

A
Cheapest Retailer
-
£164 GBP
$219 USD
A
Retailer 2
-
£184 GBP
$245 USD
View
Final sale: no returns
A
Retailer 3
-
£191 GBP
$254 USD
View
A
Retailer 4
-
£204 GBP
$271 USD
View
A
Retailer 5
-
£204 GBP
$271 USD
View
B+
Retailer 6
-
£274 GBP
$365 USD
View
Retailer 7
-
£325 GBP
View
Price last confirmed 13 days ago
A
Retailer 8
-
£330 GBP
€419 EUR
View
A
Retailer 9
-
£350 GBP
ZAR 7,532 ZAR
View
A
Retailer 10
-
£378 GBP
View
B+
Retailer 11
-
£399 GBP
$532 USD
View
B+
Retailer 12
-
£418 GBP
$556 USD
View
B+
Retailer 13
-
£419 GBP
A$858 AUD
View
B+
Retailer 14
-
£444 GBP
$591 USD
View
B+
Retailer 15
-
£498 GBP
A$1,020 AUD
View
B+
Retailer 16
-
£530 GBP
$706 USD
View
B
Retailer 17
-
£655 GBP
$872 USD
View
B
Retailer 18
-
£695 GBP
$925 USD
View
B
Retailer 19
-
£701 GBP
$933 USD
View
B+
Retailer 20
-
£741 GBP
A$1,518 AUD
View
B
Retailer 21
-
£821 GBP
View
B
Retailer 22
-
£942 GBP
$1,254 USD
View
Most Expensive
Brilliant Earth
21053113A · Sep 19
£1,171 GBP
$1,560 USD
View
Price last confirmed 40 days ago
22 more retailers have this diamond
Prices start from £164 GBPSave up to £777 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
£164 GBP