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 €335 EUR
$374 USD
As of October 30, 2026
Save €1,274 EUR (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €2,658 EUR 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: €2,658 EUR|Low: €238 EUR|High: €2,658 EUR|Avg: €1,115 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 4€335 EUR
Retailer 6€373 EUR
Retailer 7€510 EUR
Retailer 3€598 EUR
Retailer 9€1,006 EUR
Retailer 8€1,468 EUR
Retailer 2€1,609 EUR
Retailer 5€1,610 EUR
Do Amore Diamonds€2,658 EUR

12 data points across 9 retailers

11 retailers€335 EUR to €1,609 EUR

Retailer 1
-
€299 EUR
$334 USD
Price last confirmed 15 days ago
A
Retailer 2
-
€335 EUR
$374 USD
View
Final sale: no returns
Retailer 3
-
€347 EUR
$388 USD
View
Price last confirmed 18 days ago
Retailer 4
-
€371 EUR
$415 USD
View
Price last confirmed 28 days ago
A
Retailer 5
-
€373 EUR
$417 USD
View
B+
Retailer 6
-
€598 EUR
$668 USD
View
Retailer 7
-
€1,317 EUR
$1,471 USD
View
Price last confirmed 15 days ago
B
Retailer 8
-
€1,468 EUR
$1,640 USD
View
B
Retailer 9
-
€1,609 EUR
£1,415 GBP
View
Retailer 10
-
€1,610 EUR
£1,416 GBP
View
Price last confirmed 15 days ago
Most Expensive
Do Amore Diamonds
27-FD05F8366 · Oct 31
€2,658 EUR
$2,970 USD
View
Price under review
10 more retailers have this diamond
Prices start from €335 EURSave up to €1,274 EUR

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
€335 EUR