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Round|Lab Grown|IGI

1.21ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG692511436

Shape and cutting style on the report: Round brilliant

Certificate IGI LG692511436

Diamond specifications and retailer prices

From £131 GBP
$176 USD
As of October 29, 2026
Save £1,130 GBP (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,261 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG692511436 or 692511436. Listed at 23 retailers as of October 29, 2026, with prices from £131 to £1,261, a £1,130 spread on the same certified stone. Do Amore Diamonds lists it at £1,261. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG692511436
Dimensions6.75 × 6.79 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.75 mm6.79 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG692511436
Side View
Table 59.0%Crown 35.7°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.5%

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: £152 GBP|Low: £126 GBP|High: £849 GBP|Avg: £355 GBP
Retailer 1
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
October 30, 2026
Retailer 9£131 GBP
Retailer 6£146 GBP
Retailer 1£152 GBP
Retailer 3£163 GBP
Retailer 14£163 GBP
Retailer 7£306 GBP
Retailer 12£309 GBP
Retailer 8£327 GBP
Retailer 11£357 GBP
Retailer 2£439 GBP
Retailer 5£461 GBP
Retailer 13£550 GBP
Retailer 4£578 GBP
Retailer 10£845 GBP

28 data points across 14 retailers

23 retailers£131 GBP to £1,261 GBP

A
Cheapest Retailer
-
£131 GBP
$176 USD
A
Retailer 2
-
£146 GBP
$196 USD
View
Final sale: no returns
A
Retailer 3
-
£152 GBP
$204 USD
View
A
Retailer 4
-
£163 GBP
$218 USD
View
A
Retailer 5
-
£163 GBP
$218 USD
View
B+
Retailer 6
-
£219 GBP
$294 USD
View
A
Retailer 7
-
£225 GBP
$302 USD
View
Retailer 8
-
£248 GBP
HK$2,600 HKD
View
Price last confirmed 56 days ago
A
Retailer 9
-
£306 GBP
View
A
Retailer 10
-
£309 GBP
ZAR 6,682 ZAR
View
B+
Retailer 11
-
£327 GBP
View
B+
Retailer 12
-
£357 GBP
$478 USD
View
B+
Retailer 13
-
£392 GBP
A$808 AUD
View
Retailer 14
-
£396 GBP
$530 USD
View
Price last confirmed 25 days ago
B+
Retailer 15
-
£439 GBP
A$904 AUD
View
B+
Retailer 16
-
£461 GBP
$618 USD
View
Retailer 17
-
£500 GBP
$670 USD
View
Price last confirmed 31 days ago
B
Retailer 18
-
£550 GBP
A$1,133 AUD
View
Retailer 19
-
£578 GBP
$774 USD
View
Price last confirmed 12 days ago
B
Retailer 20
-
£707 GBP
$947 USD
View
B
Retailer 21
-
£835 GBP
$1,118 USD
View
B
Retailer 22
-
£845 GBP
View
Most Expensive
B
Do Amore Diamonds
27-014487F27 · Oct 29
£1,261 GBP
$1,690 USD
View
22 more retailers have this diamond
Prices start from £131 GBPSave up to £1,130 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
1.21ct Round
£131 GBP