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Round|Natural|GIA

1.30ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6551678903

Certificate GIA 6551678903

Diamond specifications and retailer prices

From HK$26,012 HKD
As of October 29, 2026
Save HK$31,675 HKD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$63,956 HKD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551678903. Listed at 17 retailers as of October 29, 2026, with a 122% 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

1.30
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551678903
Dimensions6.98 × 6.93 × 4.33 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.98 mm6.93 mm1.30 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6551678903
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

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 29
Current: HK$29,936 HKD|Low: HK$26,012 HKD|High: HK$58,624 HKD|Avg: HK$36,085 HKD|-0.6%
Retailer 1
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
October 30, 2026
Retailer 15HK$26,012 HKD
Retailer 13HK$27,870 HKD
Retailer 14HK$29,038 HKD
Retailer 1HK$29,936 HKD
Retailer 16HK$30,122 HKD
Retailer 3HK$31,033 HKD
Retailer 4HK$31,150 HKD
Retailer 6HK$31,681 HKD
Retailer 10HK$33,306 HKD
Retailer 2HK$34,548 HKD
Retailer 8HK$36,660 HKD
Retailer 7HK$39,562 HKD
Retailer 11HK$43,870 HKD
Retailer 5HK$45,980 HKD
Retailer 12HK$53,566 HKD
Retailer 9HK$57,687 HKD

31 data points across 16 retailers

17 retailersHK$26,012 HKD to HK$57,687 HKD

A
Cheapest Retailer
-
HK$26,012 HKD
A
Retailer 2
-
HK$27,870 HKD
$3,552 USD
View
A
Retailer 3
-
HK$29,038 HKD
$3,701 USD
View
A
Retailer 4
-
HK$29,936 HKD
€3,634 EUR
View
A
Retailer 5
-
HK$30,122 HKD
$3,839 USD
View
Final sale: no returns
A
Retailer 6
-
HK$31,033 HKD
$3,955 USD
View
A
Retailer 7
-
HK$31,150 HKD
$3,970 USD
View
A
Retailer 8
-
HK$31,681 HKD
$4,038 USD
View
A
Retailer 9
-
HK$33,306 HKD
£3,342 GBP
View
A
Retailer 10
-
HK$34,365 HKD
A$6,738 AUD
View
A
Retailer 11
-
HK$34,548 HKD
$4,403 USD
View
Retailer 12
-
HK$36,660 HKD
A$7,188 AUD
View
Price last confirmed 20 days ago
B+
Retailer 13
-
HK$43,870 HKD
ZAR 90,324 ZAR
View
B+
Retailer 14
-
HK$45,980 HKD
$5,860 USD
View
B+
Retailer 15
-
HK$53,566 HKD
$6,827 USD
View
B+
Retailer 16
-
HK$57,687 HKD
£5,789 GBP
View
Most Expensive
NZ Jewellers
9a869dfd-3c5c-419e-899d-e93f71b54a19 · Sep 25
HK$63,956 HKD
$8,151 USD
View
Price last confirmed 35 days ago
16 more retailers have this diamond
Prices start from HK$26,012 HKDSave up to HK$31,675 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
1.30ct Round
HK$26,012 HKD