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Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 6521073458

Certificate GIA 6521073458

Diamond specifications and retailer prices

From HK$50,911 HKD
$6,489 USD
As of October 28, 2026
Save HK$56,866 HKD (53%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$107,776 HKD at NZ Jewellers · As of October 27, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6521073458. Listed at 24 retailers as of October 27, 2026, with prices from HK$50,911 to HK$107,776, a HK$56,866 spread on the same certified stone. NZ Jewellers lists it at HK$107,776. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.88°
Pavilion angle39.48°
OriginNatural
Grading LabGIA
CertificateGIA 6521073458
Dimensions9.06 × 6.44 × 3.96 mm
L/W Ratio1.41
Top View
9.06 mm6.44 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6521073458
Side View
Table 60.0%Crown 36.88°Girdle: MED-THKPavilion 39.48°Culet: NoneDepth 61.5%

Caratlytics Score

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

Price History

Last verified: Oct 28
Current: HK$107,776 HKD|Low: HK$49,389 HKD|High: HK$107,776 HKD|Avg: HK$66,143 HKD
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
Retailer 19
October 29, 2026
Retailer 7HK$50,911 HKD
Retailer 11HK$51,264 HKD
Retailer 6HK$53,884 HKD
Retailer 19HK$53,884 HKD
Retailer 8HK$53,939 HKD
Retailer 9HK$54,331 HKD
Retailer 10HK$58,027 HKD
Retailer 17HK$58,380 HKD
Retailer 18HK$59,274 HKD
Retailer 2HK$60,800 HKD
Retailer 12HK$61,070 HKD
Retailer 4HK$61,769 HKD
Retailer 5HK$61,785 HKD
Retailer 3HK$67,355 HKD
Retailer 14HK$70,295 HKD
Retailer 16HK$78,458 HKD
Retailer 15HK$89,925 HKD
Retailer 13HK$90,284 HKD
NZ JewellersHK$107,776 HKD

28 data points across 19 retailers

24 retailersHK$50,911 HKD to HK$107,776 HKD

B+
Cheapest Retailer
-
HK$50,911 HKD
$6,489 USD
B+
Retailer 2
-
HK$51,264 HKD
$6,534 USD
View
B+
Retailer 3
-
HK$53,884 HKD
$6,868 USD
View
B+
Retailer 4
-
HK$53,939 HKD
$6,875 USD
View
B+
Retailer 5
-
HK$54,331 HKD
$6,925 USD
View
Retailer 6
-
HK$57,383 HKD
$7,314 USD
View
Price last confirmed 8 days ago
B
Retailer 7
-
HK$58,027 HKD
$7,396 USD
View
B
Retailer 8
-
HK$58,380 HKD
$7,441 USD
View
B+
Retailer 9
-
HK$59,274 HKD
$7,555 USD
View
B+
Retailer 10
-
HK$60,800 HKD
£6,102 GBP
View
B+
Retailer 11
-
HK$61,070 HKD
£6,129 GBP
View
Retailer 12
-
HK$61,769 HKD
A$12,112 AUD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
HK$61,785 HKD
$7,875 USD
View
Retailer 14
-
HK$61,785 HKD
$7,875 USD
View
Price last confirmed 24 days ago
B+
Retailer 15
-
HK$62,059 HKD
$7,910 USD
View
B+
Retailer 16
-
HK$62,059 HKD
$7,910 USD
View
B
Retailer 17
-
HK$64,178 HKD
$8,180 USD
View
B
Retailer 18
-
HK$65,054 HKD
$8,292 USD
View
B
Retailer 19
-
HK$67,355 HKD
$8,585 USD
View
B
Retailer 20
-
HK$70,295 HKD
€8,533 EUR
View
B
Retailer 21
-
HK$78,458 HKD
ZAR 161,553 ZAR
View
B
Retailer 22
-
HK$89,925 HKD
£9,025 GBP
View
B
Retailer 23
-
HK$90,284 HKD
£9,061 GBP
View
Most Expensive
B
NZ Jewellers
98e39236-a9fd-413f-9a9e-022d36809849 · Oct 27
HK$107,776 HKD
$13,737 USD
View
23 more retailers have this diamond
Prices start from HK$50,911 HKDSave up to HK$56,866 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+
1.51ct Oval
HK$50,911 HKD