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Oval|Natural|GIA

1.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 7518688839

Certificate GIA 7518688839

Diamond specifications and retailer prices

From HK$63,692 HKD
₹773,153 INR
As of October 31, 2026
Save HK$46,331 HKD (42%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$116,791 HKD at NZ Jewellers · As of September 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 7518688839. Listed at 21 retailers as of October 29, 2026, with a 73% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7518688839
Dimensions9.69 × 6.38 × 3.91 mm
L/W Ratio1.52
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
9.69 mm6.38 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7518688839
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.4%

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 31
Current: HK$116,791 HKD|Low: HK$63,692 HKD|High: HK$116,791 HKD|Avg: HK$85,805 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
November 1, 2026
Retailer 7HK$63,692 HKD
Retailer 3HK$70,698 HKD
Retailer 2HK$76,641 HKD
Retailer 11HK$77,343 HKD
Retailer 5HK$77,351 HKD
Retailer 12HK$77,746 HKD
Retailer 13HK$85,087 HKD
Retailer 10HK$85,100 HKD
Retailer 8HK$88,295 HKD
Retailer 4HK$92,851 HKD
Retailer 6HK$102,945 HKD
Retailer 9HK$110,023 HKD
NZ JewellersHK$116,791 HKD

33 data points across 13 retailers

21 retailersHK$63,692 HKD to HK$110,023 HKD

A
Cheapest Retailer
-
HK$63,692 HKD
₹773,153 INR
B+
Retailer 2
-
HK$70,698 HKD
$9,011 USD
View
B+
Retailer 3
-
HK$71,772 HKD
$9,148 USD
View
B+
Retailer 4
-
HK$73,114 HKD
$9,319 USD
View
B+
Retailer 5
-
HK$76,535 HKD
$9,755 USD
View
B+
Retailer 6
-
HK$76,641 HKD
£7,692 GBP
View
B+
Retailer 7
-
HK$77,343 HKD
$9,858 USD
View
Final sale: no returns
Retailer 8
-
HK$77,351 HKD
$9,859 USD
View
Price last confirmed 19 days ago
Retailer 9
-
HK$77,746 HKD
A$15,245 AUD
View
Price last confirmed 27 days ago
B+
Retailer 10
-
HK$83,658 HKD
$10,663 USD
View
Retailer 11
-
HK$83,792 HKD
$10,680 USD
View
Price last confirmed 39 days ago
Retailer 12
-
HK$83,792 HKD
$10,680 USD
View
Price last confirmed 24 days ago
B+
Retailer 13
-
HK$85,100 HKD
$10,847 USD
View
B+
Retailer 14
-
HK$85,730 HKD
$10,927 USD
View
B+
Retailer 15
-
HK$88,295 HKD
€10,718 EUR
View
B
Retailer 16
-
HK$92,851 HKD
$11,835 USD
View
Retailer 17
-
HK$96,683 HKD
$12,323 USD
View
Price last confirmed 22 days ago
Retailer 18
-
HK$96,683 HKD
$12,323 USD
View
Price last confirmed 39 days ago
B
Retailer 19
-
HK$102,945 HKD
ZAR 211,975 ZAR
View
B
Retailer 20
-
HK$110,023 HKD
£11,042 GBP
View
Most Expensive
NZ Jewellers
2bec4626-2b35-41e2-a961-5fa7ade75aac · Sep 30
HK$116,791 HKD
$14,886 USD
View
Price last confirmed 31 days ago
20 more retailers have this diamond
Prices start from HK$63,692 HKDSave up to HK$46,331 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$63,692 HKD