Round|Natural|GIA

1.51ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 1555390060

Certificate GIA 1555390060

Diamond specifications and retailer prices

From HK$37,338 HKD
$4,759 USD
As of October 30, 2026
Save HK$32,660 HKD (47%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$83,298 HKD at NZ Jewellers · As of September 19, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555390060. Listed at 17 retailers as of October 29, 2026, with a 87% 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1555390060
Dimensions7.27 × 7.31 × 4.57 mm
L/W Ratio1.01
Key to symbols
Twinning Wisp, Cloud, Crystal, Feather, Needle, Natural
Top View
7.27 mm7.31 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1555390060
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

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$45,796 HKD|Low: HK$37,338 HKD|High: HK$74,252 HKD|Avg: HK$49,854 HKD|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 8HK$37,338 HKD
Retailer 6HK$42,324 HKD
Retailer 2HK$45,121 HKD
Retailer 1HK$45,796 HKD
Retailer 7HK$47,859 HKD
Retailer 9HK$47,859 HKD
Retailer 5HK$49,428 HKD
Retailer 3HK$51,644 HKD
Retailer 10HK$52,127 HKD
Retailer 4HK$69,997 HKD

40 data points across 10 retailers

17 retailersHK$37,338 HKD to HK$69,997 HKD

A
Cheapest Retailer
-
HK$37,338 HKD
$4,759 USD
A
Retailer 2
-
HK$42,324 HKD
$5,395 USD
View
Retailer 3
-
HK$43,395 HKD
$5,531 USD
View
Price last confirmed 24 days ago
Retailer 4
-
HK$43,395 HKD
$5,531 USD
View
Price last confirmed 19 days ago
Retailer 5
-
HK$45,121 HKD
$5,751 USD
View
Price last confirmed 44 days ago
Retailer 6
-
HK$45,121 HKD
$5,751 USD
View
Price last confirmed 32 days ago
A
Retailer 7
-
HK$45,796 HKD
£4,596 GBP
View
A
Retailer 8
-
HK$47,859 HKD
$6,100 USD
View
A
Retailer 9
-
HK$47,859 HKD
$6,100 USD
View
A
Retailer 10
-
HK$49,428 HKD
$6,300 USD
View
Retailer 11
-
HK$50,063 HKD
$6,381 USD
View
Price last confirmed 22 days ago
A
Retailer 12
-
HK$51,644 HKD
€6,269 EUR
View
Retailer 13
-
HK$52,056 HKD
$6,635 USD
View
Price last confirmed 39 days ago
Retailer 14
-
HK$52,127 HKD
$6,644 USD
View
Price last confirmed 8 days ago
B+
Retailer 15
-
HK$69,997 HKD
£7,025 GBP
View
Retailer 16
-
HK$80,105 HKD
$10,210 USD
View
Price last confirmed 25 days ago
Most Expensive
NZ Jewellers
6ad84f01-e27b-4002-bd3a-7a6eb7c9473f · Sep 19
HK$83,298 HKD
$10,617 USD
View
Price last confirmed 42 days ago
16 more retailers have this diamond
Prices start from HK$37,338 HKDSave up to HK$32,660 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$37,338 HKD