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Round|Lab Grown|IGI

1.20ct I VS1 Round Lab Grown Diamond

EX • I/VS1 • IGI LG492123277

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492123277

Diamond specifications and retailer prices

From €850 EUR
$950 USD
As of October 31, 2026
Save €949 EUR (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €3,028 EUR at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG492123277 or 492123277. Listed at 15 retailers as of October 31, 2026, with a 112% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492123277
Dimensions6.76 × 6.74 × 4.23 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.76 mm6.74 mm1.20 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492123277
Side View
Table 56.0%Crown 36.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €3,028 EUR|Low: €850 EUR|High: €4,760 EUR|Avg: €2,459 EUR|+2.7%
Cape Diamonds
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
Retailer 18
November 1, 2026
Retailer 15€850 EUR
Retailer 14€1,420 EUR
Retailer 4€1,545 EUR
Retailer 3€1,590 EUR
Retailer 16€1,647 EUR
Retailer 18€1,647 EUR
Retailer 9€1,720 EUR
Retailer 7€1,799 EUR
Retailer 8€2,203 EUR
Retailer 17€2,591 EUR
Retailer 11€2,773 EUR
Retailer 13€2,913 EUR
Cape Diamonds€3,028 EUR
Retailer 5€3,087 EUR
Retailer 10€3,686 EUR
Retailer 2€3,968 EUR
Retailer 6€3,970 EUR
Retailer 12€4,710 EUR

29 data points across 18 retailers

15 retailers€850 EUR to €1,799 EUR

B
Cheapest Retailer
-
€850 EUR
$950 USD
B
Retailer 2
-
€1,420 EUR
$1,586 USD
View
B
Retailer 3
-
€1,545 EUR
$1,726 USD
View
B
Retailer 4
-
€1,590 EUR
$1,776 USD
View
Final sale: no returns
Retailer 5
-
€1,647 EUR
$1,840 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
€1,647 EUR
$1,840 USD
View
B
Retailer 7
-
€1,799 EUR
$2,010 USD
View
Retailer 8
-
€2,591 EUR
$2,895 USD
View
Price under review
Retailer 9
-
€2,773 EUR
View
Price under review
Retailer 10
-
€2,913 EUR
$3,254 USD
View
Price under review
Most Expensive
Cape Diamonds
cert_492123277 · Oct 29
€3,028 EUR
ZAR 54,643 ZAR
View
Price under review
10 more retailers have this diamond
Prices start from €850 EURSave up to €949 EUR

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.

B
1.20ct Round
€850 EUR