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 $478 SGD
$374 USD
As of October 30, 2026
Save $1,819 SGD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,797 SGD 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
Colour
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: $3,797 SGD|Low: $340 SGD|High: $3,797 SGD|Avg: $1,592 SGD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 4$478 SGD
Retailer 6$533 SGD
Retailer 7$729 SGD
Retailer 3$854 SGD
Retailer 9$1,437 SGD
Retailer 8$2,096 SGD
Retailer 2$2,297 SGD
Retailer 5$2,299 SGD
Do Amore Diamonds$3,797 SGD

12 data points across 9 retailers

11 retailers$478 SGD to $2,297 SGD

Retailer 1
-
$427 SGD
$334 USD
Price last confirmed 14 days ago
A
Retailer 2
-
$478 SGD
$374 USD
View
Final sale: no returns
Retailer 3
-
$496 SGD
$388 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$531 SGD
$415 USD
View
Price last confirmed 28 days ago
A
Retailer 5
-
$533 SGD
$417 USD
View
B+
Retailer 6
-
$854 SGD
$668 USD
View
Retailer 7
-
$1,881 SGD
$1,471 USD
View
Price last confirmed 14 days ago
B
Retailer 8
-
$2,096 SGD
$1,640 USD
View
B
Retailer 9
-
$2,297 SGD
£1,415 GBP
View
Retailer 10
-
$2,299 SGD
£1,416 GBP
View
Price last confirmed 15 days ago
Most Expensive
Do Amore Diamonds
27-FD05F8366 · Oct 31
$3,797 SGD
$2,970 USD
View
Price under review
10 more retailers have this diamond
Prices start from $478 SGDSave up to $1,819 SGD

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
$478 SGD