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Round|Natural|GIA

0.90ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1455851206

Certificate GIA 1455851206

Diamond specifications and retailer prices

From HK$11,455 HKD
$1,460 USD
As of October 25, 2026
Save HK$12,877 HKD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$33,689 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.9ct natural round diamond

This 0.9ct natural round sits in the just-under-one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1455851206. Listed at 17 retailers as of October 25, 2026, with a 112% 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

0.90
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1455851206
Dimensions6.17 × 6.10 × 3.87 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.17 mm6.10 mm0.90 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1455851206
Side View
Table 57.0%Crown 35°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 63.0%

Caratlytics Score

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

Price History

Last verified: Oct 25
Current: HK$18,873 HKD|Low: HK$9,627 HKD|High: HK$24,492 HKD|Avg: HK$15,037 HKD|+4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 4HK$11,455 HKD
Retailer 5HK$11,549 HKD
Retailer 7HK$12,200 HKD
Retailer 6HK$12,773 HKD
Retailer 8HK$13,108 HKD
Retailer 3HK$13,362 HKD
Retailer 1HK$18,873 HKD
Retailer 9HK$19,864 HKD
Retailer 2HK$24,332 HKD

38 data points across 9 retailers

17 retailersHK$11,455 HKD to HK$24,332 HKD

B+
Cheapest Retailer
-
HK$11,455 HKD
$1,460 USD
B+
Retailer 2
-
HK$11,549 HKD
$1,472 USD
View
Final sale: no returns
B+
Retailer 3
-
HK$11,596 HKD
$1,478 USD
View
B+
Retailer 4
-
HK$12,075 HKD
$1,539 USD
View
B
Retailer 5
-
HK$12,514 HKD
$1,595 USD
View
B
Retailer 6
-
HK$12,514 HKD
$1,595 USD
View
B
Retailer 7
-
HK$12,773 HKD
$1,628 USD
View
B+
Retailer 8
-
HK$13,094 HKD
$1,669 USD
View
B+
Retailer 9
-
HK$13,108 HKD
$1,671 USD
View
B+
Retailer 10
-
HK$13,362 HKD
£1,341 GBP
View
B
Retailer 11
-
HK$14,122 HKD
$1,800 USD
View
B
Retailer 12
-
HK$14,122 HKD
$1,800 USD
View
B
Retailer 13
-
HK$14,436 HKD
$1,840 USD
View
B
Retailer 14
-
HK$14,593 HKD
$1,860 USD
View
B
Retailer 15
-
HK$18,873 HKD
€2,291 EUR
View
B
Retailer 16
-
HK$24,332 HKD
£2,442 GBP
View
Most Expensive
NZ Jewellers
4bc21d95-6706-46f4-af1d-e750ebd3172e · Oct 30
HK$33,689 HKD
$4,294 USD
View
Price under review
16 more retailers have this diamond
Prices start from HK$11,455 HKDSave up to HK$12,877 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+
0.90ct Round
HK$11,455 HKD