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Round|Lab Grown|IGI

1.16ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG492122427

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492122427

Diamond specifications and retailer prices

From £499 GBP
$670 USD
As of October 31, 2026
Save £954 GBP (66%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,438 GBP at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

About this 1.16ct lab-grown round diamond

This 1.16ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG492122427 or 492122427. Listed at 13 retailers as of October 31, 2026, with a 191% 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

1.16
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492122427
Dimensions6.87 × 6.85 × 4.05 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.87 mm6.85 mm1.16 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492122427
Side View
Table 58.5%Crown 32.9°Girdle: THN-MEDPavilion 40.2°Culet: NoneDepth 59.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £2,438 GBP|Low: £499 GBP|High: £3,833 GBP|Avg: £1,967 GBP|+2.4%
Cape Diamonds
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
Retailer 15
October 31, 2026
Retailer 8£499 GBP
Retailer 11£1,143 GBP
Retailer 15£1,280 GBP
Retailer 12£1,326 GBP
Retailer 14£1,326 GBP
Retailer 3£1,453 GBP
Retailer 5£1,459 GBP
Retailer 4£1,780 GBP
Retailer 13£2,088 GBP
Retailer 2£2,227 GBP
Retailer 10£2,345 GBP
Cape Diamonds£2,438 GBP
Retailer 6£2,657 GBP
Retailer 7£2,968 GBP
Retailer 9£3,793 GBP

25 data points across 15 retailers

13 retailers£499 GBP to £1,453 GBP

B+
Cheapest Retailer
-
£499 GBP
$670 USD
B
Retailer 2
-
£1,143 GBP
$1,534 USD
View
B
Retailer 3
-
£1,244 GBP
$1,669 USD
View
B
Retailer 4
-
£1,280 GBP
$1,718 USD
View
Final sale: no returns
B
Retailer 5
-
£1,326 GBP
$1,780 USD
View
Retailer 6
-
£1,326 GBP
$1,780 USD
View
Price last confirmed 21 days ago
B
Retailer 7
-
£1,453 GBP
$1,950 USD
View
Retailer 8
-
£2,088 GBP
$2,802 USD
View
Price under review
Retailer 9
-
£2,227 GBP
€2,846 EUR
View
Price under review
Retailer 10
-
£2,345 GBP
$3,147 USD
View
Price under review
Most Expensive
Cape Diamonds
cert_492122427 · Oct 29
£2,438 GBP
ZAR 52,853 ZAR
View
Price under review
10 more retailers have this diamond
Prices start from £499 GBPSave up to £954 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.

B+
1.16ct Round
£499 GBP