Oval|Natural|GIA

1.51ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 6555496656

Certificate GIA 6555496656

Diamond specifications and retailer prices

From HK$60,239 HKD
$7,678 USD
As of November 1, 2026
Save HK$64,994 HKD (52%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$125,233 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 G 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 6555496656. Listed at 21 retailers as of October 30, 2026, with prices from HK$60,239 to HK$125,233, a HK$64,994 spread on the same certified stone. NZ Jewellers lists it at HK$125,233. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle37.7°
OriginNatural
Grading LabGIA
CertificateGIA 6555496656
Dimensions9.18 × 6.40 × 4.01 mm
L/W Ratio1.43
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
9.18 mm6.40 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555496656
Side View
Table 62.0%Crown 37.5°Girdle: THN-THKPavilion 37.7°Culet: NoneDepth 62.5%

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: Nov 1
Current: HK$125,233 HKD|Low: HK$60,961 HKD|High: HK$125,233 HKD|Avg: HK$77,889 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
November 2, 2026
Retailer 15HK$60,961 HKD
Retailer 3HK$63,202 HKD
Retailer 7HK$67,316 HKD
Retailer 4HK$69,113 HKD
Retailer 11HK$69,113 HKD
Retailer 14HK$69,150 HKD
Retailer 2HK$69,319 HKD
Retailer 5HK$71,408 HKD
Retailer 13HK$74,872 HKD
Retailer 12HK$76,025 HKD
Retailer 6HK$77,343 HKD
Retailer 10HK$86,397 HKD
Retailer 9HK$91,987 HKD
Retailer 8HK$104,353 HKD
NZ JewellersHK$125,233 HKD

46 data points across 15 retailers

21 retailersHK$60,239 HKD to HK$125,233 HKD

B+
Cheapest Retailer
-
HK$60,239 HKD
$7,678 USD
B+
Retailer 2
-
HK$60,961 HKD
$7,770 USD
View
B+
Retailer 3
-
HK$63,202 HKD
SGD 10,886 SGD
View
B+
Retailer 4
-
HK$64,711 HKD
$8,248 USD
View
B
Retailer 5
-
HK$67,316 HKD
$8,580 USD
View
B
Retailer 6
-
HK$68,611 HKD
$8,745 USD
View
B
Retailer 7
-
HK$69,113 HKD
$8,809 USD
View
Final sale: no returns
B
Retailer 8
-
HK$69,113 HKD
$8,809 USD
View
Retailer 9
-
HK$69,150 HKD
A$13,560 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
HK$69,319 HKD
£6,957 GBP
View
B
Retailer 11
-
HK$73,848 HKD
$9,412 USD
View
B
Retailer 12
-
HK$74,872 HKD
$9,543 USD
View
Retailer 13
-
HK$74,872 HKD
$9,543 USD
View
Price last confirmed 7 days ago
B
Retailer 14
-
HK$76,025 HKD
$9,690 USD
View
B
Retailer 15
-
HK$76,550 HKD
$9,757 USD
View
B
Retailer 16
-
HK$77,343 HKD
$9,858 USD
View
Retailer 17
-
HK$86,397 HKD
$11,012 USD
View
Price last confirmed 62 days ago
B
Retailer 18
-
HK$86,397 HKD
$11,012 USD
View
B
Retailer 19
-
HK$91,987 HKD
ZAR 189,411 ZAR
View
B
Retailer 20
-
HK$104,353 HKD
£10,473 GBP
View
Most Expensive
B
NZ Jewellers
5d7088cb-e287-4cbf-91e0-5155794ec581 · Oct 30
HK$125,233 HKD
$15,962 USD
View
20 more retailers have this diamond
Prices start from HK$60,239 HKDSave up to HK$64,994 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$60,239 HKD