Round|Lab Grown|IGI

1.20ct H VS1 Round Lab Grown Diamond

VG • H/VS1 • IGI LG494166398

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494166398

Diamond specifications and retailer prices

From $323 USD
As of November 1, 2026
Save $975 USD (75%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,298 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG494166398 or 494166398. Listed at 14 retailers as of October 29, 2026, with prices from $323 to $1,298, a $975 spread on the same certified stone. MOH London lists it at $1,298. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
H
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494166398
Dimensions6.73 × 6.70 × 4.29 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
6.73 mm6.70 mm1.20 ctH / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG494166398
Side View
Table 56.5%Crown 36°Girdle: STK-THKPavilion 41.5°Culet: NoneDepth 63.9%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $1,298 USD|Low: $149 USD|High: $1,298 USD|Avg: $670 USD|+8.8%
MOH London
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
November 1, 2026
Retailer 14$208 USD
Retailer 4$231 USD
Retailer 9$323 USD
Retailer 11$493 USD
Retailer 12$500 USD
Retailer 7$554 USD
Retailer 2$590 USD
Retailer 13$727 USD
Retailer 6$813 USD
Retailer 8$942 USD
Retailer 3$991 USD
Retailer 5$1,018 USD
Retailer 10$1,205 USD
MOH London$1,298 USD

30 data points across 14 retailers

14 retailers$323 USD to $1,298 USD

Retailer 1
-
$186 USD
Price last confirmed 39 days ago
Retailer 2
-
$216 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$228 USD
View
Price last confirmed 40 days ago
B+
Retailer 4
-
$323 USD
View
B+
Retailer 5
-
$493 USD
View
B+
Retailer 6
-
$500 USD
View
B
Retailer 7
-
$554 USD
ZAR 8,945 ZAR
View
B
Retailer 8
-
$590 USD
£465 GBP
View
B
Retailer 9
-
$727 USD
View
Retailer 10
-
$820 USD
View
Price last confirmed 41 days ago
B
Retailer 11
-
$942 USD
View
B
Retailer 12
-
$1,018 USD
View
C
Retailer 13
-
$1,205 USD
View
Most Expensive
B
MOH London
LG494166398 · Oct 29
$1,298 USD
£1,022 GBP
View
13 more retailers have this diamond
Prices start from $323 USDSave up to $975 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
$323 USD