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Round|Lab Grown|IGI

1.21ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG692511407

Shape and cutting style on the report: Round brilliant

Certificate IGI LG692511407

Diamond specifications and retailer prices

From £122 GBP
$164 USD
As of October 29, 2026
Save £1,049 GBP (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,172 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 LG692511407 or 692511407. Listed at 23 retailers as of October 29, 2026, with prices from £122 to £1,172, a £1,049 spread on the same certified stone. Do Amore Diamonds lists it at £1,172. 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 angle35.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG692511407
Dimensions6.75 × 6.83 × 4.24 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 mm6.83 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG692511407
Side View
Table 58.0%Crown 35.4°Girdle: Med.Pavilion 41.1°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
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: £1,172 GBP|Low: £122 GBP|High: £1,172 GBP|Avg: £380 GBP
Do Amore Diamonds
Retailer 2
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Retailer 21
October 30, 2026
Retailer 19£122 GBP
Retailer 6£137 GBP
Retailer 20£142 GBP
Retailer 17£152 GBP
Retailer 21£152 GBP
Retailer 10£204 GBP
Retailer 11£223 GBP
Retailer 5£286 GBP
Retailer 13£288 GBP
Retailer 2£301 GBP
Retailer 8£338 GBP
Retailer 3£377 GBP
Retailer 14£392 GBP
Retailer 15£408 GBP
Retailer 7£423 GBP
Retailer 4£538 GBP
Retailer 16£544 GBP
Retailer 12£668 GBP
Retailer 18£784 GBP
Retailer 9£806 GBP
Do Amore Diamonds£1,172 GBP

34 data points across 21 retailers

23 retailers£122 GBP to £1,172 GBP

A
Cheapest Retailer
-
£122 GBP
$164 USD
A
Retailer 2
-
£137 GBP
$183 USD
View
Final sale: no returns
A
Retailer 3
-
£142 GBP
$190 USD
View
A
Retailer 4
-
£152 GBP
$203 USD
View
A
Retailer 5
-
£152 GBP
$203 USD
View
B+
Retailer 6
-
£204 GBP
$274 USD
View
A
Retailer 7
-
£223 GBP
$299 USD
View
Retailer 8
-
£248 GBP
HK$2,600 HKD
View
Price last confirmed 56 days ago
Retailer 9
-
£286 GBP
View
Price last confirmed 13 days ago
A
Retailer 10
-
£288 GBP
ZAR 6,224 ZAR
View
A
Retailer 11
-
£301 GBP
View
B+
Retailer 12
-
£338 GBP
$453 USD
View
Retailer 13
-
£377 GBP
$505 USD
View
Price last confirmed 12 days ago
B+
Retailer 14
-
£392 GBP
A$808 AUD
View
B+
Retailer 15
-
£408 GBP
A$842 AUD
View
B+
Retailer 16
-
£423 GBP
$567 USD
View
Retailer 17
-
£492 GBP
$659 USD
View
Price last confirmed 31 days ago
Retailer 18
-
£538 GBP
$721 USD
View
Price last confirmed 12 days ago
B+
Retailer 19
-
£544 GBP
A$1,122 AUD
View
B
Retailer 20
-
£668 GBP
$895 USD
View
B
Retailer 21
-
£784 GBP
View
B
Retailer 22
-
£806 GBP
$1,081 USD
View
Most Expensive
B
Do Amore Diamonds
27-E1B2DC1D6 · Oct 29
£1,172 GBP
$1,570 USD
View
22 more retailers have this diamond
Prices start from £122 GBPSave up to £1,049 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
£122 GBP