Round|Lab Grown|IGI

1.20ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG492112714

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492112714

Diamond specifications and retailer prices

From $690 USD
As of October 30, 2026
Save $1,320 USD (66%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,449 USD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

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 LG492112714 or 492112714. Listed at 13 retailers as of October 29, 2026, with a 191% 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492112714
Dimensions6.92 × 6.87 × 4.09 mm
L/W Ratio1.01
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
6.92 mm6.87 mm1.20 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492112714
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $690 USD|Low: $690 USD|High: $5,317 USD|Avg: $2,649 USD|-28.9%
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
October 30, 2026
Retailer 1$690 USD
Retailer 11$1,586 USD
Retailer 2$1,776 USD
Retailer 12$1,840 USD
Retailer 14$1,840 USD
Retailer 5$1,922 USD
Retailer 3$2,010 USD
Retailer 4$2,461 USD
Retailer 13$2,895 USD
Retailer 8$3,099 USD
Retailer 10$3,254 USD
Retailer 7$3,382 USD
Retailer 6$4,118 USD
Retailer 9$5,283 USD

24 data points across 14 retailers

13 retailers$690 USD to $2,010 USD

B+
Cheapest Retailer
-
$690 USD
B
Retailer 2
-
$1,586 USD
View
B
Retailer 3
-
$1,726 USD
View
B
Retailer 4
-
$1,776 USD
View
Final sale: no returns
Retailer 5
-
$1,840 USD
View
Price last confirmed 17 days ago
B
Retailer 6
-
$1,840 USD
View
B
Retailer 7
-
$2,010 USD
View
Retailer 8
-
$2,895 USD
View
Price under review
Retailer 9
-
$3,099 USD
€2,951 EUR
View
Price under review
Retailer 10
-
$3,254 USD
View
Price under review
Retailer 11
-
$3,382 USD
ZAR 54,643 ZAR
View
Price under review
Most Expensive
NZ Jewellers
399fa9dd-008f-4363-80a9-d7ac2f039ac2 · Oct 27
$3,449 USD
View
Price under review
11 more retailers have this diamond
Prices start from $690 USDSave up to $1,320 USD

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
$690 USD