Radiant|Lab Grown|GIA

1.20ct I VS1 Radiant Lab Grown Diamond

EX • I/VS1 • GIA 5426559987

Certificate GIA 5426559987

Diamond specifications and retailer prices

From $374 USD
As of October 30, 2026
Save $1,423 USD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,970 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.2ct lab-grown radiant diamond

This 1.2ct lab-grown radiant sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5426559987. Listed at 11 retailers as of October 29, 2026, with a 380% 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 5426559987
Dimensions7.90 × 5.14 × 3.44 mm
L/W Ratio1.54
Culet sizeNone
Top View
7.90 mm5.14 mm1.20 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5426559987
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.0%

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: $2,970 USD|Low: $266 USD|High: $2,970 USD|Avg: $1,246 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 4$374 USD
Retailer 6$417 USD
Retailer 7$570 USD
Retailer 3$668 USD
Retailer 9$1,124 USD
Retailer 8$1,640 USD
Retailer 2$1,797 USD
Retailer 5$1,798 USD
Do Amore Diamonds$2,970 USD

12 data points across 9 retailers

11 retailers$374 USD to $1,797 USD

Retailer 1
-
$334 USD
Price last confirmed 14 days ago
A
Retailer 2
-
$374 USD
View
Final sale: no returns
Retailer 3
-
$388 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$415 USD
View
Price last confirmed 28 days ago
A
Retailer 5
-
$417 USD
View
B+
Retailer 6
-
$668 USD
View
Retailer 7
-
$1,471 USD
View
Price last confirmed 14 days ago
B
Retailer 8
-
$1,640 USD
View
B
Retailer 9
-
$1,797 USD
£1,415 GBP
View
Retailer 10
-
$1,798 USD
£1,416 GBP
View
Price last confirmed 15 days ago
Most Expensive
Do Amore Diamonds
27-FD05F8366 · Oct 31
$2,970 USD
View
Price under review
10 more retailers have this diamond
Prices start from $374 USDSave up to $1,423 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
1.20ct Radiant
$374 USD