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Round|Lab Grown|IGI

1.20ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG671407725

Shape and cutting style on the report: Round brilliant

Certificate IGI LG671407725

Diamond specifications and retailer prices

From £131 GBP
$175 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: £1,262 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore 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 LG671407725 or 671407725. Listed at 23 retailers as of October 29, 2026, with prices from £131 to £1,262, a £1,130 spread on the same certified stone. Do Amore Diamonds lists it at £1,262. 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 angle36°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671407725
Dimensions6.76 × 6.80 × 4.20 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
6.76 mm6.80 mm1.20 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671407725
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.9%

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: £1,262 GBP|Low: £126 GBP|High: £1,262 GBP|Avg: £412 GBP
Do Amore Diamonds
Retailer 2
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October 29, 2026
Retailer 18£131 GBP
Retailer 7£146 GBP
Retailer 19£152 GBP
Retailer 17£163 GBP
Retailer 20£163 GBP
Retailer 11£219 GBP
Retailer 10£224 GBP
Retailer 5£306 GBP
Retailer 15£308 GBP
Retailer 2£327 GBP
Retailer 3£387 GBP
Retailer 8£394 GBP
Retailer 16£438 GBP
Retailer 6£460 GBP
Retailer 12£480 GBP
Retailer 14£548 GBP
Retailer 4£577 GBP
Retailer 9£837 GBP
Retailer 13£844 GBP
Do Amore Diamonds£1,262 GBP

36 data points across 20 retailers

23 retailers£131 GBP to £1,262 GBP

A
Cheapest Retailer
-
£131 GBP
$175 USD
A
Retailer 2
-
£146 GBP
$195 USD
View
Final sale: no returns
A
Retailer 3
-
£152 GBP
$203 USD
View
A
Retailer 4
-
£163 GBP
$217 USD
View
A
Retailer 5
-
£163 GBP
$217 USD
View
B+
Retailer 6
-
£219 GBP
$292 USD
View
A
Retailer 7
-
£224 GBP
$298 USD
View
Price last confirmed 14 days ago
A
Retailer 8
-
£250 GBP
HK$2,600 HKD
View
Price last confirmed 55 days ago
A
Retailer 9
-
£306 GBP
View
Price last confirmed 12 days ago
A
Retailer 10
-
£308 GBP
ZAR 6,635 ZAR
View
B+
Retailer 11
-
£327 GBP
View
B+
Retailer 12
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£348 GBP
$464 USD
View
B+
Retailer 13
-
£387 GBP
$515 USD
View
Price last confirmed 11 days ago
B+
Retailer 14
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£394 GBP
A$808 AUD
View
B+
Retailer 15
-
£438 GBP
A$898 AUD
View
B+
Retailer 16
-
£460 GBP
$613 USD
View
B+
Retailer 17
-
£480 GBP
$639 USD
View
B
Retailer 18
-
£548 GBP
A$1,122 AUD
View
B+
Retailer 19
-
£577 GBP
$769 USD
View
Price last confirmed 11 days ago
B
Retailer 20
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£707 GBP
$942 USD
View
B
Retailer 21
-
£837 GBP
$1,115 USD
View
B
Retailer 22
-
£844 GBP
View
Most Expensive
B
Do Amore Diamonds
27-0B41F6F2D · Oct 29
£1,262 GBP
$1,680 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
1.20ct Round
£131 GBP