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Oval|Natural|GIA

1.51ct D SI1 Oval Natural Diamond

ID • D/SI1 • GIA 7548154942

Certificate GIA 7548154942

Diamond specifications and retailer prices

From HK$51,421 HKD
$6,554 USD
As of October 30, 2026
Save HK$46,533 HKD (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$97,954 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two 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 7548154942. Listed at 9 retailers as of October 30, 2026, with prices from HK$51,421 to HK$97,954, a HK$46,533 spread on the same certified stone. NZ Jewellers lists it at HK$97,954. 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

1.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.36°
Pavilion angle39.7°
OriginNatural
Grading LabGIA
CertificateGIA 7548154942
Dimensions8.58 × 6.28 × 4.13 mm
L/W Ratio1.37
Girdle conditionVery Thick
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
8.58 mm6.28 mm1.51 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7548154942
Side View
Table 57.0%Crown 40.36°Girdle: ThickPavilion 39.7°Culet: NoneDepth 65.8%

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: Oct 30
Current: HK$97,954 HKD|Low: HK$51,421 HKD|High: HK$104,905 HKD|Avg: HK$67,371 HKD|-6.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 7HK$51,421 HKD
Retailer 8HK$54,096 HKD
Retailer 2HK$54,964 HKD
Retailer 6HK$58,568 HKD
Retailer 10HK$58,574 HKD
Retailer 9HK$59,008 HKD
Retailer 4HK$59,470 HKD
Retailer 3HK$64,362 HKD
Retailer 11HK$68,862 HKD
Retailer 5HK$82,064 HKD
NZ JewellersHK$97,954 HKD

37 data points across 11 retailers

9 retailersHK$51,421 HKD to HK$97,954 HKD

A
Cheapest Retailer
-
HK$51,421 HKD
$6,554 USD
A
Retailer 2
-
HK$54,096 HKD
$6,895 USD
View
A
Retailer 3
-
HK$54,964 HKD
£5,516 GBP
View
A
Retailer 4
-
HK$58,568 HKD
$7,465 USD
View
Retailer 5
-
HK$58,574 HKD
A$11,486 AUD
View
Price last confirmed 9 days ago
A
Retailer 6
-
HK$59,008 HKD
$7,521 USD
View
A
Retailer 7
-
HK$59,470 HKD
$7,580 USD
View
B+
Retailer 8
-
HK$82,064 HKD
£8,236 GBP
View
Most Expensive
B
NZ Jewellers
e8059cf4-d62c-4dda-8c3f-5f1beaed782e · Oct 30
HK$97,954 HKD
$12,485 USD
View
8 more retailers have this diamond
Prices start from HK$51,421 HKDSave up to HK$46,533 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
1.51ct Oval
HK$51,421 HKD