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Round|Lab Grown|IGI

1.20ct D VS2 Round Lab Grown Diamond

ID • D/VS2 • IGI LG683544351

Shape and cutting style on the report: Round brilliant

Certificate IGI LG683544351

Diamond specifications and retailer prices

From £129 GBP
$173 USD
As of October 29, 2026
Save £696 GBP (84%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £826 GBP at Reve Diamonds · As of October 30, 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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG683544351 or 683544351. Listed at 24 retailers as of October 29, 2026, with prices from £129 to £826, a £696 spread on the same certified stone. Reve Diamonds lists it at £826. 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
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683544351
Dimensions6.81 × 6.84 × 4.18 mm
L/W Ratio1.00
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
6.81 mm6.84 mm1.20 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683544351
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.2%

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: £308 GBP|Low: £101 GBP|High: £826 GBP|Avg: £380 GBP|+10.4%
Retailer 1
Retailer 2
Retailer 3
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Retailer 19
Reve Diamonds
October 31, 2026
Retailer 6£129 GBP
Retailer 18£144 GBP
Retailer 16£149 GBP
Retailer 3£160 GBP
Retailer 19£160 GBP
Retailer 13£284 GBP
Retailer 2£285 GBP
Retailer 11£290 GBP
Retailer 1£308 GBP
Retailer 17£345 GBP
Retailer 12£363 GBP
Retailer 8£366 GBP
Retailer 4£419 GBP
Retailer 9£463 GBP
Retailer 7£513 GBP
Retailer 15£518 GBP
Retailer 10£543 GBP
Retailer 5£554 GBP
Retailer 14£751 GBP
Reve Diamonds£826 GBP

45 data points across 20 retailers

24 retailers£129 GBP to £826 GBP

Retailer 1
-
£128 GBP
$171 USD
Price last confirmed 39 days ago
A
Retailer 2
-
£129 GBP
$173 USD
View
A
Retailer 3
-
£144 GBP
$193 USD
View
Final sale: no returns
A
Retailer 4
-
£149 GBP
$200 USD
View
Retailer 5
-
£156 GBP
$209 USD
View
Price last confirmed 39 days ago
A
Retailer 6
-
£160 GBP
$214 USD
View
A
Retailer 7
-
£160 GBP
$214 USD
View
A
Retailer 8
-
£284 GBP
View
A
Retailer 9
-
£285 GBP
$382 USD
View
A
Retailer 10
-
£290 GBP
$388 USD
View
B+
Retailer 11
-
£308 GBP
€393 EUR
View
B+
Retailer 12
-
£345 GBP
$462 USD
View
B+
Retailer 13
-
£363 GBP
A$748 AUD
View
Retailer 14
-
£366 GBP
$490 USD
View
Price last confirmed 24 days ago
Retailer 15
-
£374 GBP
$501 USD
View
Price last confirmed 52 days ago
B+
Retailer 16
-
£419 GBP
$562 USD
View
B+
Retailer 17
-
£463 GBP
$620 USD
View
Retailer 18
-
£509 GBP
$682 USD
View
Price last confirmed 40 days ago
B
Retailer 19
-
£513 GBP
$688 USD
View
B+
Retailer 20
-
£518 GBP
A$1,067 AUD
View
B
Retailer 21
-
£554 GBP
$742 USD
View
B
Retailer 22
-
£554 GBP
$742 USD
View
B
Retailer 23
-
£751 GBP
View
Most Expensive
B
Reve Diamonds
DDC371982 · Oct 30
£826 GBP
$1,106 USD
View
23 more retailers have this diamond
Prices start from £129 GBPSave up to £696 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
£129 GBP