Round|Natural|GIA

1.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 7553158400

Certificate GIA 7553158400

Diamond specifications and retailer prices

From HK$57,729 HKD
$7,358 USD
As of November 1, 2026
Save HK$69,623 HKD (55%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$127,351 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round 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 and certified by GIA 7553158400. Listed at 24 retailers as of October 30, 2026, with prices from HK$57,729 to HK$127,351, a HK$69,623 spread on the same certified stone. NZ Jewellers lists it at HK$127,351. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7553158400
Dimensions7.31 × 7.28 × 4.56 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
7.31 mm7.28 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7553158400
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: HK$127,351 HKD|Low: HK$55,524 HKD|High: HK$127,351 HKD|Avg: HK$81,062 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
November 1, 2026
Retailer 9HK$61,079 HKD
Retailer 3HK$63,676 HKD
Retailer 11HK$68,979 HKD
Retailer 10HK$70,039 HKD
Retailer 8HK$70,344 HKD
Retailer 6HK$70,615 HKD
Retailer 2HK$78,788 HKD
Retailer 12HK$79,595 HKD
Retailer 4HK$83,831 HKD
Retailer 7HK$93,543 HKD
Retailer 5HK$106,117 HKD
NZ JewellersHK$127,351 HKD

42 data points across 12 retailers

24 retailersHK$57,729 HKD to HK$127,351 HKD

B+
Cheapest Retailer
-
HK$57,729 HKD
$7,358 USD
B+
Retailer 2
-
HK$59,473 HKD
A$11,662 AUD
View
B+
Retailer 3
-
HK$59,619 HKD
$7,599 USD
View
B+
Retailer 4
-
HK$61,079 HKD
$7,785 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$61,319 HKD
$7,816 USD
View
B+
Retailer 6
-
HK$62,572 HKD
CA$11,077 CAD
View
B+
Retailer 7
-
HK$63,354 HKD
$8,075 USD
View
B+
Retailer 8
-
HK$63,676 HKD
$8,116 USD
View
B+
Retailer 9
-
HK$68,979 HKD
$8,792 USD
View
B
Retailer 10
-
HK$70,039 HKD
$8,927 USD
View
Retailer 11
-
HK$70,344 HKD
A$13,794 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
HK$70,615 HKD
£7,087 GBP
View
B
Retailer 13
-
HK$70,658 HKD
$9,006 USD
View
B+
Retailer 14
-
HK$73,177 HKD
$9,327 USD
View
B+
Retailer 15
-
HK$75,476 HKD
$9,620 USD
View
B+
Retailer 16
-
HK$75,476 HKD
$9,620 USD
View
B
Retailer 17
-
HK$77,986 HKD
$9,940 USD
View
B+
Retailer 18
-
HK$78,788 HKD
€9,564 EUR
View
B
Retailer 19
-
HK$79,595 HKD
$10,145 USD
View
B
Retailer 20
-
HK$81,250 HKD
$10,356 USD
View
Retailer 21
-
HK$83,831 HKD
$10,685 USD
View
Price last confirmed 10 days ago
B
Retailer 22
-
HK$93,543 HKD
ZAR 192,615 ZAR
View
B
Retailer 23
-
HK$106,117 HKD
£10,650 GBP
View
Most Expensive
B
NZ Jewellers
eb3c1a88-f45c-4c03-a97a-4d4757043811 · Oct 30
HK$127,351 HKD
$16,232 USD
View
23 more retailers have this diamond
Prices start from HK$57,729 HKDSave up to HK$69,623 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 Round
HK$57,729 HKD