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Round|Lab Grown|IGI

1.20ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG803633313

Shape and cutting style on the report: Round brilliant

Certificate IGI LG803633313

Diamond specifications and retailer prices

From £142 GBP
$189 USD
As of October 27, 2026
Save £681 GBP (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £823 GBP at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.2ct lab-grown round diamond

This 1.2ct 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 LG803633313 or 803633313. Listed at 23 retailers as of October 25, 2026, with prices from £142 to £823, a £681 spread on the same certified stone. Reve Diamonds lists it at £823. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803633313
Dimensions6.84 × 6.82 × 4.20 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 mm6.82 mm1.20 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803633313
Side View
Table 58.0%Crown 33.9°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.5%

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 27
Current: £512 GBP|Low: £122 GBP|High: £823 GBP|Avg: £390 GBP|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 11
Retailer 12
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Retailer 19
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Retailer 21
Reve Diamonds
October 29, 2026
Retailer 7£122 GBP
Retailer 6£142 GBP
Retailer 8£158 GBP
Retailer 15£173 GBP
Retailer 12£262 GBP
Retailer 21£267 GBP
Retailer 17£268 GBP
Retailer 18£278 GBP
Retailer 3£282 GBP
Retailer 14£287 GBP
Retailer 10£345 GBP
Retailer 2£365 GBP
Retailer 19£384 GBP
Retailer 4£393 GBP
Retailer 5£466 GBP
Retailer 9£507 GBP
Retailer 16£511 GBP
Retailer 1£512 GBP
Retailer 13£537 GBP
Retailer 11£548 GBP
Retailer 20£738 GBP
Reve Diamonds£823 GBP

38 data points across 22 retailers

23 retailers£142 GBP to £823 GBP

Retailer 1
-
£122 GBP
$163 USD
Price last confirmed 22 days ago
A
Retailer 2
-
£142 GBP
$189 USD
View
Final sale: no returns
Retailer 3
-
£147 GBP
$196 USD
View
Price last confirmed 20 days ago
Retailer 4
-
£158 GBP
$210 USD
View
Price last confirmed 22 days ago
A
Retailer 5
-
£173 GBP
HK$1,800 HKD
View
A
Retailer 6
-
£262 GBP
€332 EUR
View
A
Retailer 7
-
£267 GBP
ZAR 5,735 ZAR
View
A
Retailer 8
-
£268 GBP
View
A
Retailer 9
-
£278 GBP
View
B+
Retailer 10
-
£282 GBP
$375 USD
View
A
Retailer 11
-
£287 GBP
$382 USD
View
B+
Retailer 12
-
£345 GBP
$459 USD
View
B+
Retailer 13
-
£365 GBP
A$748 AUD
View
B+
Retailer 14
-
£384 GBP
A$787 AUD
View
B+
Retailer 15
-
£393 GBP
$524 USD
View
B+
Retailer 16
-
£466 GBP
$620 USD
View
Retailer 17
-
£507 GBP
$675 USD
View
Price last confirmed 23 days ago
B
Retailer 18
-
£511 GBP
SGD 919 SGD
View
B
Retailer 19
-
£512 GBP
$682 USD
View
B
Retailer 20
-
£537 GBP
A$1,100 AUD
View
B
Retailer 21
-
£548 GBP
$730 USD
View
B
Retailer 22
-
£738 GBP
View
Most Expensive
B
Reve Diamonds
869677784 · Oct 25
£823 GBP
$1,096 USD
View
22 more retailers have this diamond
Prices start from £142 GBPSave up to £681 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
1.20ct Round
£142 GBP