Radiant|Natural|GIA

1.20ct D SI1 Radiant Natural Diamond

ID • D/SI1 • GIA 1236910234

Certificate GIA 1236910234

Diamond specifications and retailer prices

From $2,795 USD
As of November 5, 2026
Save $2,581 USD (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,376 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1236910234. Listed at 13 retailers as of November 5, 2026, with prices from $2,795 to $5,376, a $2,581 spread on the same certified stone. NZ Jewellers lists it at $5,376. 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

1.20
Carat
D
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1236910234
Dimensions6.98 × 5.20 × 3.54 mm
L/W Ratio1.34
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Pinpoint
Top View
6.98 mm5.20 mm1.20 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1236910234
Side View
Table 67.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 68.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $5,376 USD|Low: $2,504 USD|High: $5,376 USD|Avg: $3,543 USD|+1.0%
NZ Jewellers
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
Retailer 18
November 6, 2026
Retailer 6$2,504 USD
Retailer 15$2,795 USD
Retailer 17$2,795 USD
Retailer 16$2,903 USD
Retailer 7$2,950 USD
Retailer 2$2,993 USD
Retailer 18$3,025 USD
Retailer 3$3,190 USD
Retailer 4$3,190 USD
Retailer 14$3,225 USD
Retailer 5$3,290 USD
Retailer 8$3,453 USD
Retailer 11$3,591 USD
Retailer 9$3,620 USD
Retailer 12$3,766 USD
Retailer 10$4,345 USD
Retailer 13$5,146 USD
NZ Jewellers$5,376 USD

28 data points across 18 retailers

13 retailers$2,795 USD to $5,376 USD

A
Cheapest Retailer
-
$2,795 USD
A
Retailer 2
-
$2,903 USD
View
A
Retailer 3
-
$2,950 USD
View
A
Retailer 4
-
$2,993 USD
View
A
Retailer 5
-
$3,025 USD
View
A
Retailer 6
-
$3,190 USD
View
A
Retailer 7
-
$3,190 USD
View
A
Retailer 8
-
$3,225 USD
View
B+
Retailer 9
-
$3,290 USD
View
B+
Retailer 10
-
$3,591 USD
View
B+
Retailer 11
-
$3,766 USD
View
B
Retailer 12
-
$5,146 USD
View
Most Expensive
B
NZ Jewellers
d9f58977-f502-40ff-a920-afa2aec6d910 · Nov 5
$5,376 USD
View
12 more retailers have this diamond
Prices start from $2,795 USDSave up to $2,581 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
$2,795 USD