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Oval|Natural|GIA

1.51ct H SI2 Oval Natural Diamond

ID • H/SI2 • GIA 6551643504

Certificate GIA 6551643504

Diamond specifications and retailer prices

From HK$27,476 HKD
$3,502 USD
As of October 31, 2026
Save HK$37,785 HKD (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$65,261 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551643504. Listed at 17 retailers as of October 30, 2026, with prices from HK$27,476 to HK$65,261, a HK$37,785 spread on the same certified stone. NZ Jewellers lists it at HK$65,261. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551643504
Dimensions8.86 × 6.30 × 3.97 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
8.86 mm6.30 mm1.51 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551643504
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.1%

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$65,261 HKD|Low: HK$27,476 HKD|High: HK$66,885 HKD|Avg: HK$38,820 HKD|-2.4%
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
November 2, 2026
Retailer 15HK$27,476 HKD
Retailer 8HK$29,264 HKD
Retailer 5HK$30,574 HKD
Retailer 11HK$31,328 HKD
Retailer 16HK$33,762 HKD
Retailer 6HK$33,768 HKD
Retailer 3HK$33,933 HKD
Retailer 4HK$33,933 HKD
Retailer 17HK$33,933 HKD
Retailer 7HK$36,004 HKD
Retailer 2HK$36,288 HKD
Retailer 12HK$37,248 HKD
Retailer 10HK$38,859 HKD
Retailer 14HK$39,158 HKD
Retailer 9HK$46,447 HKD
Retailer 13HK$59,665 HKD
NZ JewellersHK$65,261 HKD

25 data points across 17 retailers

17 retailersHK$27,476 HKD to HK$65,261 HKD

A
Cheapest Retailer
-
HK$27,476 HKD
$3,502 USD
A
Retailer 2
-
HK$29,264 HKD
$3,730 USD
View
A
Retailer 3
-
HK$30,574 HKD
$3,897 USD
View
A
Retailer 4
-
HK$31,328 HKD
$3,993 USD
View
Final sale: no returns
A
Retailer 5
-
HK$33,762 HKD
$4,303 USD
View
A
Retailer 6
-
HK$33,768 HKD
$4,304 USD
View
A
Retailer 7
-
HK$33,933 HKD
$4,325 USD
View
A
Retailer 8
-
HK$33,933 HKD
$4,325 USD
View
A
Retailer 9
-
HK$33,933 HKD
$4,325 USD
View
A
Retailer 10
-
HK$36,004 HKD
$4,589 USD
View
A
Retailer 11
-
HK$36,288 HKD
£3,642 GBP
View
A
Retailer 12
-
HK$37,248 HKD
£3,738 GBP
View
A
Retailer 13
-
HK$38,859 HKD
€4,717 EUR
View
A
Retailer 14
-
HK$39,158 HKD
$4,991 USD
View
B+
Retailer 15
-
HK$46,447 HKD
$5,920 USD
View
B+
Retailer 16
-
HK$59,665 HKD
£5,988 GBP
View
Most Expensive
B
NZ Jewellers
8c622049-9a61-49f9-ac51-2a589433ecd6 · Oct 30
HK$65,261 HKD
$8,318 USD
View
16 more retailers have this diamond
Prices start from HK$27,476 HKDSave up to HK$37,785 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$27,476 HKD