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Round|Lab Grown|IGI

1.21ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG792658332

Shape and cutting style on the report: Round brilliant

Certificate IGI LG792658332

Diamond specifications and retailer prices

From £142 GBP
$190 USD
As of October 27, 2026
Save £679 GBP (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £821 GBP at Reve Diamonds · As of October 25, 2026
View at Reve 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 LG792658332 or 792658332. Listed at 23 retailers as of October 25, 2026, with prices from £142 to £821, a £679 spread on the same certified stone. Reve Diamonds lists it at £821. 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 angle33.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792658332
Dimensions6.84 × 6.87 × 4.21 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.84 mm6.87 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792658332
Side View
Table 58.0%Crown 33.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.4%

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 27
Current: £279 GBP|Low: £142 GBP|High: £821 GBP|Avg: £398 GBP|+1.9%
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
Retailer 15
Retailer 16
Retailer 17
Reve Diamonds
October 27, 2026
Retailer 4£142 GBP
Retailer 13£264 GBP
Retailer 14£267 GBP
Retailer 16£269 GBP
Retailer 1£279 GBP
Retailer 17£281 GBP
Retailer 5£288 GBP
Retailer 6£343 GBP
Retailer 15£373 GBP
Retailer 10£385 GBP
Retailer 2£395 GBP
Retailer 3£470 GBP
Retailer 9£516 GBP
Retailer 8£516 GBP
Retailer 11£534 GBP
Retailer 7£548 GBP
Retailer 12£738 GBP
Reve Diamonds£821 GBP

42 data points across 18 retailers

23 retailers£142 GBP to £821 GBP

Retailer 1
-
£122 GBP
$164 USD
Price last confirmed 23 days ago
A
Retailer 2
-
£142 GBP
$190 USD
View
Final sale: no returns
Retailer 3
-
£148 GBP
$198 USD
View
Price last confirmed 21 days ago
Retailer 4
-
£157 GBP
$211 USD
View
Price last confirmed 31 days ago
A
Retailer 5
-
£182 GBP
HK$1,900 HKD
View
A
Retailer 6
-
£264 GBP
€337 EUR
View
Retailer 7
-
£267 GBP
ZAR 5,775 ZAR
View
Price last confirmed 7 days ago
Retailer 8
-
£269 GBP
View
Price last confirmed 13 days ago
A
Retailer 9
-
£279 GBP
View
B+
Retailer 10
-
£281 GBP
$377 USD
View
A
Retailer 11
-
£288 GBP
$386 USD
View
B+
Retailer 12
-
£343 GBP
$460 USD
View
B+
Retailer 13
-
£373 GBP
A$768 AUD
View
B+
Retailer 14
-
£385 GBP
A$793 AUD
View
B+
Retailer 15
-
£395 GBP
$529 USD
View
B+
Retailer 16
-
£470 GBP
$630 USD
View
Retailer 17
-
£508 GBP
$680 USD
View
Price last confirmed 23 days ago
B
Retailer 18
-
£516 GBP
SGD 935 SGD
View
B
Retailer 19
-
£520 GBP
$697 USD
View
B+
Retailer 20
-
£534 GBP
A$1,100 AUD
View
B
Retailer 21
-
£548 GBP
$734 USD
View
B
Retailer 22
-
£738 GBP
View
Most Expensive
B
Reve Diamonds
370346D94 · Oct 25
£821 GBP
$1,100 USD
View
22 more retailers have this diamond
Prices start from £142 GBPSave up to £679 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
£142 GBP