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Oval|Natural|GIA

1.31ct L SI1 Oval Natural Diamond

ID • L/SI1 • GIA 5

Certificate GIA 5

Diamond specifications and retailer prices

From HK$16,396 HKD
As of November 6, 2026
Save HK$26,247 HKD (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$42,643 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 L 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 7 retailers as of November 5, 2026, with prices from HK$16,396 to HK$42,643, a HK$26,247 spread on the same certified stone. NZ Jewellers lists it at HK$42,643. 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
L
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5
Dimensions9.33 × 5.83 × 3.61 mm
L/W Ratio1.60
Top View
9.33 mm5.83 mm1.31 ctL / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.9%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: HK$42,643 HKD|Low: HK$16,396 HKD|High: HK$42,643 HKD|Avg: HK$22,217 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
September 29, 2026
Retailer 3HK$16,396 HKD
Retailer 7HK$17,415 HKD
Retailer 4HK$18,481 HKD
Retailer 5HK$18,481 HKD
Retailer 2HK$19,335 HKD
Retailer 6HK$21,326 HKD
NZ JewellersHK$42,643 HKD

2 data points across 7 retailers

7 retailersHK$16,396 HKD to HK$42,643 HKD

B+
Cheapest Retailer
-
HK$16,396 HKD
B+
Retailer 2
-
HK$17,415 HKD
View
Retailer 3
-
HK$18,481 HKD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
HK$18,481 HKD
View
B+
Retailer 5
-
HK$19,335 HKD
View
B
Retailer 6
-
HK$21,326 HKD
View
Most Expensive
B
NZ Jewellers
8821ad59-669b-4735-8369-c56815edc54b · Nov 5
HK$42,643 HKD
$5,441 USD
View
6 more retailers have this diamond
Prices start from HK$16,396 HKDSave up to HK$26,247 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.

B+
1.31ct Oval
HK$16,396 HKD