Radiant|Lab Grown|IGI

1.21ct D VS1 Radiant Lab Grown Diamond

VG • D/VS1 • IGI LG831692380

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG831692380

Diamond specifications and retailer prices

From $211 USD
As of October 30, 2026
Save $1,016 USD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,227 USD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG831692380 or 831692380. Listed at 18 retailers as of October 30, 2026, with prices from $211 to $1,227, a $1,016 spread on the same certified stone. Reve Diamonds lists it at $1,227. 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

1.21
Carat
D
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831692380
Dimensions8.07 × 5.21 × 3.46 mm
L/W Ratio1.55
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.07 mm5.21 mm1.21 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831692380
Side View
Table 64.0%Crown 35.5°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 66.4%

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: $1,046 USD|Low: $211 USD|High: $1,227 USD|Avg: $639 USD|-0.5%
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
Retailer 15
Retailer 16
Retailer 17
Reve Diamonds
November 1, 2026
Retailer 3$211 USD
Retailer 2$235 USD
Retailer 14$244 USD
Retailer 5$261 USD
Retailer 10$349 USD
Retailer 13$440 USD
Retailer 4$448 USD
Retailer 7$469 USD
Retailer 11$482 USD
Retailer 16$504 USD
Retailer 8$722 USD
Retailer 12$839 USD
Retailer 15$842 USD
Retailer 6$849 USD
Retailer 9$892 USD
Retailer 1$1,046 USD
Retailer 17$1,100 USD
Reve Diamonds$1,227 USD

6 data points across 18 retailers

18 retailers$211 USD to $1,227 USD

A
Cheapest Retailer
-
$211 USD
A
Retailer 2
-
$235 USD
View
Final sale: no returns
A
Retailer 3
-
$244 USD
View
A
Retailer 4
-
$261 USD
View
A
Retailer 5
-
$349 USD
£275 GBP
View
A
Retailer 6
-
$440 USD
€419 EUR
View
A
Retailer 7
-
$448 USD
View
B+
Retailer 8
-
$469 USD
View
A
Retailer 9
-
$482 USD
£380 GBP
View
B+
Retailer 10
-
$504 USD
View
B+
Retailer 11
-
$722 USD
A$1,111 AUD
View
B
Retailer 12
-
$839 USD
View
B
Retailer 13
-
$842 USD
View
B
Retailer 14
-
$849 USD
SGD 1,147 SGD
View
B
Retailer 15
-
$892 USD
View
B
Retailer 16
-
$1,046 USD
£824 GBP
View
B
Retailer 17
-
$1,100 USD
View
Most Expensive
B
Reve Diamonds
6D92BDA8B · Nov 1
$1,227 USD
View
17 more retailers have this diamond
Prices start from $211 USDSave up to $1,016 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 Radiant
$211 USD