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Round|Natural|GIA

2.09ct D SI1 Round Natural Diamond

ID • D/SI1 • GIA 5

Certificate GIA 5

Diamond specifications and retailer prices

From HK$173,696 HKD
$22,139 USD
As of October 30, 2026
Save HK$33,211 HKD (16%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: HK$206,907 HKD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 2.09ct natural round diamond

This 2.09ct natural round sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 3 retailers as of October 30, 2026, with prices from HK$173,696 to HK$206,907, a HK$33,211 spread on the same certified stone. Blue Nile lists it at HK$206,907. 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

2.09
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5
Dimensions8.15 × 8.19 × 5.09 mm
L/W Ratio1.00
Top View
8.15 mm8.19 mm2.09 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.3%

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 30
Current: HK$206,907 HKD|Low: HK$171,986 HKD|High: HK$206,907 HKD|Avg: HK$188,404 HKD
Blue Nile
Retailer 2
Retailer 3
September 23, 2026
Retailer 2HK$173,696 HKD
Retailer 3HK$186,444 HKD
Blue NileHK$206,907 HKD

3 data points across 3 retailers

3 retailersHK$173,696 HKD to HK$206,907 HKD

B+
Cheapest Retailer
-
HK$173,696 HKD
$22,139 USD
B+
Retailer 2
-
HK$186,444 HKD
$23,764 USD
View
Most Expensive
B
Blue Nile
12447788 · Oct 31
HK$206,907 HKD
$26,372 USD
View
2 more retailers have this diamond
Prices start from HK$173,696 HKDSave up to HK$33,211 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+
2.09ct Round
HK$173,696 HKD