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Round|Natural|GIA

0.40ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 2506686469

Certificate GIA 2506686469

Diamond specifications and retailer prices

From HK$5,492 HKD
$700 USD
As of October 28, 2026
Save HK$6,188 HKD (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$19,010 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural round diamond

This 0.4ct natural round sits in the sub-half-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2506686469. Listed at 18 retailers as of October 28, 2026, with a 113% 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

0.40
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2506686469
Dimensions4.72 × 4.70 × 2.93 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Top View
4.72 mm4.70 mm0.40 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2506686469
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

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 28
Current: HK$19,010 HKD|Low: HK$5,390 HKD|High: HK$19,010 HKD|Avg: HK$8,495 HKD
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
October 30, 2026
Retailer 15HK$5,390 HKD
Retailer 5HK$5,492 HKD
Retailer 14HK$5,589 HKD
Retailer 4HK$5,610 HKD
Retailer 10HK$5,806 HKD
Retailer 3HK$6,904 HKD
Retailer 7HK$6,904 HKD
Retailer 6HK$7,140 HKD
Retailer 8HK$7,247 HKD
Retailer 12HK$7,720 HKD
Retailer 2HK$7,876 HKD
Retailer 13HK$9,164 HKD
Retailer 9HK$11,160 HKD
Retailer 11HK$17,509 HKD
NZ JewellersHK$19,010 HKD

41 data points across 15 retailers

18 retailersHK$5,492 HKD to HK$11,680 HKD

Retailer 1
-
HK$5,390 HKD
$687 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
HK$5,492 HKD
$700 USD
View
Retailer 3
-
HK$5,589 HKD
$712 USD
View
Price last confirmed 76 days ago
B+
Retailer 4
-
HK$5,610 HKD
$715 USD
View
B+
Retailer 5
-
HK$5,664 HKD
A$1,111 AUD
View
B+
Retailer 6
-
HK$5,704 HKD
$727 USD
View
B+
Retailer 7
-
HK$5,806 HKD
$740 USD
View
B+
Retailer 8
-
HK$6,339 HKD
$808 USD
View
B+
Retailer 9
-
HK$6,904 HKD
$880 USD
View
B+
Retailer 10
-
HK$6,904 HKD
$880 USD
View
B+
Retailer 11
-
HK$7,140 HKD
$910 USD
View
B+
Retailer 12
-
HK$7,247 HKD
£727 GBP
View
B
Retailer 13
-
HK$7,720 HKD
$984 USD
View
B
Retailer 14
-
HK$7,876 HKD
€956 EUR
View
B
Retailer 15
-
HK$11,160 HKD
£1,120 GBP
View
B
Retailer 16
-
HK$11,680 HKD
£1,172 GBP
View
Retailer 17
-
HK$17,509 HKD
CA$3,100 CAD
View
Price under review
Most Expensive
NZ Jewellers
826d9c3a-1e7d-4411-bc46-cdd71cd06b2b · Oct 30
HK$19,010 HKD
$2,423 USD
View
Price under review
17 more retailers have this diamond
Prices start from HK$5,492 HKDSave up to HK$6,188 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+
0.40ct Round
HK$5,492 HKD