CaratHunter
Plans
Round|Lab Grown|IGI

1.21ct J VS1 Round Lab Grown Diamond

EX • J/VS1 • IGI LG480171498

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480171498

Diamond specifications and retailer prices

From $690 USD
As of October 30, 2026
Save $4,050 USD (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,740 USD at MOH London · As of October 27, 2026
View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG480171498 or 480171498. Listed at 12 retailers as of October 27, 2026, with prices from $690 to $4,740, a $4,050 spread on the same certified stone. MOH London lists it at $4,740. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
J
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480171498
Dimensions6.97 × 6.93 × 4.16 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
6.97 mm6.93 mm1.21 ctJ / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG480171498
Side View
Table 55.0%Crown 31.5°Girdle: MediumPavilion 40.5°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,740 USD|Low: $690 USD|High: $4,797 USD|Avg: $2,363 USD|+0.1%
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
October 30, 2026
Retailer 2$690 USD
Retailer 7$1,270 USD
Retailer 11$1,422 USD
Retailer 8$1,473 USD
Retailer 10$1,473 USD
Retailer 12$1,645 USD
Retailer 13$2,025 USD
Retailer 9$2,333 USD
Retailer 6$2,708 USD
Retailer 3$2,746 USD
Retailer 5$3,297 USD
Retailer 4$4,219 USD
MOH London$4,740 USD

21 data points across 13 retailers

12 retailers$690 USD to $4,740 USD

A
Cheapest Retailer
-
$690 USD
B+
Retailer 2
-
$1,270 USD
View
B+
Retailer 3
-
$1,382 USD
View
B+
Retailer 4
-
$1,422 USD
View
Final sale: no returns
Retailer 5
-
$1,473 USD
View
Price last confirmed 18 days ago
B
Retailer 6
-
$1,473 USD
View
B+
Retailer 7
-
$1,645 USD
View
B
Retailer 8
-
$2,333 USD
View
B
Retailer 9
-
$2,708 USD
ZAR 43,754 ZAR
View
B
Retailer 10
-
$2,746 USD
View
B
Retailer 11
-
$2,762 USD
View
Most Expensive
B
MOH London
LG480171498 · Oct 27
$4,740 USD
£3,732 GBP
View
11 more retailers have this diamond
Prices start from $690 USDSave up to $4,050 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.

A
1.21ct Round
$690 USD