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Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 6183608449

Certificate GIA 6183608449

Diamond specifications and retailer prices

From HK$30,670 HKD
$3,909 USD
As of November 2, 2026
Save HK$33,571 HKD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$64,241 HKD at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6183608449. Listed at 16 retailers as of November 2, 2026, with prices from HK$30,670 to HK$64,241, a HK$33,571 spread on the same certified stone. MOH London lists it at HK$64,241. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6183608449
Dimensions7.34 × 5.85 × 4.09 mm
L/W Ratio1.25
Culet sizeNone
Top View
7.34 mm5.85 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6183608449
Side View
Table 65.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 69.9%

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: Nov 2
Current: HK$64,241 HKD|Low: HK$30,270 HKD|High: HK$65,019 HKD|Avg: HK$39,556 HKD|-0.1%
MOH London
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
November 2, 2026
Retailer 15HK$30,670 HKD
Retailer 9HK$31,306 HKD
Retailer 3HK$31,510 HKD
Retailer 4HK$32,244 HKD
Retailer 6HK$34,506 HKD
Retailer 5HK$38,477 HKD
Retailer 14HK$38,571 HKD
Retailer 8HK$40,263 HKD
Retailer 11HK$40,660 HKD
Retailer 10HK$41,035 HKD
Retailer 13HK$41,035 HKD
Retailer 12HK$42,369 HKD
Retailer 2HK$43,037 HKD
Retailer 7HK$44,519 HKD
MOH LondonHK$64,241 HKD

42 data points across 15 retailers

16 retailersHK$30,670 HKD to HK$64,241 HKD

A
Cheapest Retailer
-
HK$30,670 HKD
$3,909 USD
Retailer 2
-
HK$31,306 HKD
$3,990 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
HK$31,510 HKD
$4,016 USD
View
A
Retailer 4
-
HK$32,244 HKD
$4,110 USD
View
A
Retailer 5
-
HK$33,318 HKD
A$6,533 AUD
View
A
Retailer 6
-
HK$34,506 HKD
CA$6,108 CAD
View
A
Retailer 7
-
HK$38,477 HKD
$4,904 USD
View
A
Retailer 8
-
HK$38,571 HKD
$4,916 USD
View
A
Retailer 9
-
HK$40,263 HKD
£4,041 GBP
View
Retailer 10
-
HK$40,660 HKD
A$7,973 AUD
View
Price last confirmed 24 days ago
B+
Retailer 11
-
HK$41,035 HKD
$5,230 USD
View
B+
Retailer 12
-
HK$41,035 HKD
$5,230 USD
View
B+
Retailer 13
-
HK$42,369 HKD
$5,400 USD
View
B+
Retailer 14
-
HK$43,037 HKD
€5,224 EUR
View
Retailer 15
-
HK$44,519 HKD
$5,674 USD
View
Price last confirmed 11 days ago
Most Expensive
B
MOH London
308625714 · Nov 2
HK$64,241 HKD
£6,447 GBP
View
15 more retailers have this diamond
Prices start from HK$30,670 HKDSave up to HK$33,571 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 Radiant
HK$30,670 HKD