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Round|Natural|GIA

1.51ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1538904520

Certificate GIA 1538904520

Diamond specifications and retailer prices

From HK$58,347 HKD
As of October 30, 2026
Save HK$72,857 HKD (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$131,204 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1538904520. Listed at 25 retailers as of October 30, 2026, with prices from HK$58,347 to HK$131,204, a HK$72,857 spread on the same certified stone. NZ Jewellers lists it at HK$131,204. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1538904520
Dimensions7.31 × 7.26 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
7.31 mm7.26 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1538904520
Side View
Table 57.0%Crown 34.5°Girdle: Sli. ThickPavilion 41.4°Culet: NoneDepth 63.0%

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 30
Current: HK$131,204 HKD|Low: HK$58,347 HKD|High: HK$131,204 HKD|Avg: HK$75,883 HKD|+18.9%
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
October 30, 2026
Retailer 23HK$58,347 HKD
Retailer 12HK$58,490 HKD
Retailer 4HK$59,251 HKD
Retailer 9HK$61,142 HKD
Retailer 11HK$61,424 HKD
Retailer 21HK$65,237 HKD
Retailer 6HK$65,606 HKD
Retailer 20HK$65,606 HKD
Retailer 8HK$67,002 HKD
Retailer 24HK$70,556 HKD
Retailer 19HK$71,021 HKD
Retailer 5HK$71,066 HKD
Retailer 3HK$72,165 HKD
Retailer 15HK$72,688 HKD
Retailer 7HK$74,926 HKD
Retailer 10HK$74,926 HKD
Retailer 14HK$77,437 HKD
Retailer 13HK$80,929 HKD
Retailer 2HK$81,589 HKD
Retailer 17HK$82,764 HKD
Retailer 22HK$84,616 HKD
Retailer 18HK$87,166 HKD
Retailer 16HK$95,553 HKD
Retailer 25HK$109,913 HKD
NZ JewellersHK$131,204 HKD

19 data points across 25 retailers

25 retailersHK$58,347 HKD to HK$131,204 HKD

A
Cheapest Retailer
-
HK$58,347 HKD
A
Retailer 2
-
HK$58,490 HKD
$7,455 USD
View
A
Retailer 3
-
HK$59,251 HKD
$7,552 USD
View
A
Retailer 4
-
HK$61,142 HKD
$7,793 USD
View
A
Retailer 5
-
HK$61,424 HKD
$7,829 USD
View
A
Retailer 6
-
HK$65,237 HKD
$8,315 USD
View
A
Retailer 7
-
HK$65,606 HKD
$8,362 USD
View
B+
Retailer 8
-
HK$65,606 HKD
$8,362 USD
View
Final sale: no returns
B+
Retailer 9
-
HK$67,002 HKD
$8,540 USD
View
B+
Retailer 10
-
HK$70,556 HKD
$8,993 USD
View
B+
Retailer 11
-
HK$71,021 HKD
£7,128 GBP
View
B+
Retailer 12
-
HK$71,066 HKD
$9,058 USD
View
B+
Retailer 13
-
HK$72,165 HKD
$9,198 USD
View
B+
Retailer 14
-
HK$72,688 HKD
A$14,253 AUD
View
B+
Retailer 15
-
HK$74,926 HKD
$9,550 USD
View
B+
Retailer 16
-
HK$74,926 HKD
$9,550 USD
View
B+
Retailer 17
-
HK$77,437 HKD
$9,870 USD
View
B+
Retailer 18
-
HK$80,929 HKD
£8,122 GBP
View
B+
Retailer 19
-
HK$81,589 HKD
€9,904 EUR
View
B
Retailer 20
-
HK$82,764 HKD
$10,549 USD
View
B+
Retailer 21
-
HK$84,616 HKD
$10,785 USD
View
Retailer 22
-
HK$87,166 HKD
$11,110 USD
View
Price last confirmed 7 days ago
Retailer 23
-
HK$95,553 HKD
ZAR 196,753 ZAR
View
Price last confirmed 8 days ago
B
Retailer 24
-
HK$109,913 HKD
£11,031 GBP
View
Most Expensive
B
NZ Jewellers
02c63f2b-ddb7-4ac2-8ebd-2141d1ef2b1a · Oct 30
HK$131,204 HKD
$16,723 USD
View
24 more retailers have this diamond
Prices start from HK$58,347 HKDSave up to HK$72,857 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 Round
HK$58,347 HKD