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Radiant|Natural|GIA

1.31ct K SI1 Radiant Natural Diamond

ID • K/SI1 • GIA 11

Certificate GIA 11

Diamond specifications and retailer prices

From HK$19,021 HKD
As of November 4, 2026
Save HK$24,194 HKD (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$43,215 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.31ct natural radiant diamond

This 1.31ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 8 retailers as of November 4, 2026, with prices from HK$19,021 to HK$43,215, a HK$24,194 spread on the same certified stone. NZ Jewellers lists it at HK$43,215. 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

1.31
Carat
K
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 11
Dimensions7.33 × 5.49 × 3.75 mm
L/W Ratio1.34
Top View
7.33 mm5.49 mm1.31 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 11
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.3%

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 4
Current: HK$43,215 HKD|Low: HK$19,021 HKD|High: HK$43,215 HKD|Avg: HK$25,236 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
September 30, 2026
Retailer 8HK$19,021 HKD
Retailer 4HK$19,578 HKD
Retailer 5HK$22,470 HKD
Retailer 6HK$22,470 HKD
Retailer 2HK$23,340 HKD
Retailer 3HK$24,288 HKD
Retailer 7HK$25,926 HKD
NZ JewellersHK$43,215 HKD

3 data points across 8 retailers

8 retailersHK$19,021 HKD to HK$43,215 HKD

A
Cheapest Retailer
-
HK$19,021 HKD
A
Retailer 2
-
HK$19,578 HKD
View
Retailer 3
-
HK$22,470 HKD
View
Price last confirmed 9 days ago
A
Retailer 4
-
HK$22,470 HKD
View
A
Retailer 5
-
HK$23,340 HKD
View
B+
Retailer 6
-
HK$24,288 HKD
View
B+
Retailer 7
-
HK$25,926 HKD
View
Most Expensive
B
NZ Jewellers
cb41615b-a6f8-4181-bfe7-05febe830fb7 · Nov 5
HK$43,215 HKD
$5,514 USD
View
7 more retailers have this diamond
Prices start from HK$19,021 HKDSave up to HK$24,194 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
1.31ct Radiant
HK$19,021 HKD