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Round|Lab Grown|IGI

0.99ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG811674179

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811674179

Diamond specifications and retailer prices

From £123 GBP
$164 USD
As of October 28, 2026
Save £374 GBP (75%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £497 GBP at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 0.99ct lab-grown round diamond

This 0.99ct lab-grown round sits in the just-under-one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG811674179 or 811674179. Listed at 6 retailers as of October 28, 2026, with prices from £123 to £497, a £374 spread on the same certified stone. Frank Darling lists it at £497. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.99
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811674179
Dimensions6.38 × 6.42 × 3.98 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
6.38 mm6.42 mm0.99 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811674179
Side View
Table 56.0%Crown 33.5°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.2%

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: Oct 28
Current: £497 GBP|Low: £85 GBP|High: £762 GBP|Avg: £349 GBP|+0.2%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 27, 2026
Retailer 6£123 GBP
Retailer 5£191 GBP
Retailer 7£216 GBP
Retailer 3£226 GBP
Retailer 12£232 GBP
Retailer 2£305 GBP
Retailer 8£325 GBP
Retailer 9£411 GBP
Retailer 4£441 GBP
Retailer 10£472 GBP
Frank Darling£497 GBP
Retailer 11£762 GBP

9 data points across 12 retailers

6 retailers£123 GBP to £497 GBP

A
Cheapest Retailer
-
£123 GBP
$164 USD
Final sale: no returns
A
Retailer 2
-
£132 GBP
$176 USD
View
Price last confirmed 52 days ago
B+
Retailer 3
-
£191 GBP
$254 USD
View
B+
Retailer 4
-
£305 GBP
$405 USD
View
Price last confirmed 11 days ago
B+
Retailer 5
-
£441 GBP
A$902 AUD
View
Price last confirmed 100 days ago
Most Expensive
B
Frank Darling
100759666518KD · Oct 29
£497 GBP
$661 USD
View
5 more retailers have this diamond
Prices start from £123 GBPSave up to £374 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
0.99ct Round
£123 GBP