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Oval|Natural|GIA

1.31ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 6425979052

Certificate GIA 6425979052

Diamond specifications and retailer prices

From HK$18,144 HKD
As of November 6, 2026
Save HK$25,558 HKD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$43,701 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.31ct natural oval diamond

This 1.31ct natural oval 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 6425979052. Listed at 18 retailers as of November 5, 2026, with prices from HK$18,144 to HK$43,701, a HK$25,558 spread on the same certified stone. NZ Jewellers lists it at HK$43,701. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6425979052
Dimensions8.22 × 6.06 × 3.90 mm
L/W Ratio1.36
Top View
8.22 mm6.06 mm1.31 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6425979052
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.2%

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 6
Current: HK$23,442 HKD|Low: HK$18,144 HKD|High: HK$42,447 HKD|Avg: HK$26,881 HKD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2HK$18,144 HKD
Retailer 8HK$18,457 HKD
Retailer 7HK$22,791 HKD
Retailer 1HK$23,442 HKD
Retailer 9HK$23,473 HKD
Retailer 3HK$25,801 HKD
Retailer 6HK$29,359 HKD
Retailer 4HK$30,613 HKD
Retailer 5HK$41,828 HKD

32 data points across 9 retailers

18 retailersHK$18,144 HKD to HK$43,701 HKD

A
Cheapest Retailer
-
HK$18,144 HKD
A
Retailer 2
-
HK$18,457 HKD
View
Retailer 3
-
HK$22,768 HKD
View
Price last confirmed 18 days ago
B+
Retailer 4
-
HK$22,791 HKD
View
B+
Retailer 5
-
HK$23,442 HKD
View
B+
Retailer 6
-
HK$23,473 HKD
View
Retailer 7
-
HK$25,088 HKD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
HK$25,088 HKD
View
B+
Retailer 9
-
HK$25,628 HKD
View
B+
Retailer 10
-
HK$25,801 HKD
View
B
Retailer 11
-
HK$26,052 HKD
View
B
Retailer 12
-
HK$26,208 HKD
View
B
Retailer 13
-
HK$28,944 HKD
View
B+
Retailer 14
-
HK$29,359 HKD
View
B
Retailer 15
-
HK$30,613 HKD
View
B
Retailer 16
-
HK$32,972 HKD
View
B
Retailer 17
-
HK$41,828 HKD
View
Most Expensive
B
NZ Jewellers
de510069-ca62-4433-affb-0ee35ed7147d · Nov 5
HK$43,701 HKD
$5,576 USD
View
17 more retailers have this diamond
Prices start from HK$18,144 HKDSave up to HK$25,558 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 Oval
HK$18,144 HKD