CaratHunter
Plans
Radiant|Natural|GIA

1.21ct G SI2 Radiant Natural Diamond

EX • G/SI2 • GIA 6551273212

Certificate GIA 6551273212

Diamond specifications and retailer prices

From $3,962 USD
CA$5,503 CAD
As of October 30, 2026
Save $609 USD (13%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,571 USD at The Diamond Guys · As of October 31, 2026
View at The Diamond Guys

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551273212. Listed at 3 retailers as of October 30, 2026, with prices from $3,962 to $4,571, a $609 spread on the same certified stone. The Diamond Guys lists it at $4,571. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
G
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551273212
Dimensions7.24 × 5.47 × 3.60 mm
L/W Ratio1.32
Culet sizeNone
Top View
7.24 mm5.47 mm1.21 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551273212
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,962 USD|Low: $3,452 USD|High: $5,359 USD|Avg: $4,247 USD
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
The Diamond Guys
October 15, 2026
Retailer 2$3,452 USD
Retailer 11$3,476 USD
Retailer 7$3,566 USD
Retailer 13$3,915 USD
Retailer 1$3,962 USD
Retailer 8$4,114 USD
Retailer 5$4,251 USD
Retailer 9$4,310 USD
Retailer 4$4,430 USD
Retailer 15$4,430 USD
Retailer 3$4,570 USD
The Diamond Guys$4,571 USD
Retailer 14$4,737 USD
Retailer 10$4,899 USD
Retailer 12$5,153 USD
Retailer 6$5,309 USD

36 data points across 16 retailers

3 retailers$3,962 USD to $4,571 USD

B+
Cheapest Retailer
-
$3,962 USD
CA$5,503 CAD
B+
Retailer 2
-
$4,114 USD
View
Most Expensive
B
The Diamond Guys
1992899755 · Oct 31
$4,571 USD
View
2 more retailers have this diamond
Prices start from $3,962 USDSave up to $609 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.

B+
1.21ct Radiant
$3,962 USD