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Radiant|Natural|GIA

1.20ct D SI1 Radiant Natural Diamond

ID • D/SI1 • GIA 1236910234

Certificate GIA 1236910234

Diamond specifications and retailer prices

From HK$21,906 HKD
As of November 5, 2026
Save HK$20,228 HKD (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$42,134 HKD 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 HK$21,906 to HK$42,134, a HK$20,228 spread on the same certified stone. NZ Jewellers lists it at HK$42,134. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: HK$42,134 HKD|Low: HK$19,625 HKD|High: HK$42,134 HKD|Avg: HK$27,767 HKD|+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 6HK$19,625 HKD
Retailer 15HK$21,906 HKD
Retailer 17HK$21,906 HKD
Retailer 16HK$22,752 HKD
Retailer 7HK$23,120 HKD
Retailer 2HK$23,457 HKD
Retailer 18HK$23,708 HKD
Retailer 3HK$25,001 HKD
Retailer 4HK$25,001 HKD
Retailer 14HK$25,276 HKD
Retailer 5HK$25,785 HKD
Retailer 8HK$27,063 HKD
Retailer 11HK$28,144 HKD
Retailer 9HK$28,371 HKD
Retailer 12HK$29,516 HKD
Retailer 10HK$34,054 HKD
Retailer 13HK$40,331 HKD
NZ JewellersHK$42,134 HKD

28 data points across 18 retailers

13 retailersHK$21,906 HKD to HK$42,134 HKD

A
Cheapest Retailer
-
HK$21,906 HKD
A
Retailer 2
-
HK$22,752 HKD
View
A
Retailer 3
-
HK$23,120 HKD
View
A
Retailer 4
-
HK$23,457 HKD
View
A
Retailer 5
-
HK$23,708 HKD
View
A
Retailer 6
-
HK$25,001 HKD
View
A
Retailer 7
-
HK$25,001 HKD
View
A
Retailer 8
-
HK$25,276 HKD
View
B+
Retailer 9
-
HK$25,785 HKD
View
B+
Retailer 10
-
HK$28,144 HKD
View
B+
Retailer 11
-
HK$29,516 HKD
View
B
Retailer 12
-
HK$40,331 HKD
View
Most Expensive
B
NZ Jewellers
d9f58977-f502-40ff-a920-afa2aec6d910 · Nov 5
HK$42,134 HKD
$5,376 USD
View
12 more retailers have this diamond
Prices start from HK$21,906 HKDSave up to HK$20,228 HKD

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
HK$21,906 HKD