Round|Natural|GIA

2.57ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2537883539

Certificate GIA 2537883539

Diamond specifications and retailer prices

From HK$178,623 HKD
$22,767 USD
As of October 31, 2026
Save HK$128,548 HKD (42%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: HK$307,171 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 2.57ct natural round diamond

This 2.57ct natural round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2537883539. Listed at 28 retailers as of October 31, 2026, with prices from HK$178,623 to HK$307,171, a HK$128,548 spread on the same certified stone. MOH London lists it at HK$307,171. 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

2.57
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2537883539
Dimensions8.68 × 8.72 × 5.42 mm
L/W Ratio1.00
Top View
8.68 mm8.72 mm2.57 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2537883539
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$307,171 HKD|Low: HK$178,623 HKD|High: HK$310,878 HKD|Avg: HK$222,785 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
November 2, 2026
Retailer 8HK$178,623 HKD
Retailer 9HK$188,477 HKD
Retailer 3HK$191,514 HKD
Retailer 11HK$196,684 HKD
Retailer 10HK$198,261 HKD
Retailer 2HK$198,413 HKD
Retailer 6HK$201,352 HKD
Retailer 4HK$237,592 HKD
Retailer 7HK$260,759 HKD
Retailer 5HK$271,967 HKD
MOH LondonHK$307,171 HKD

32 data points across 11 retailers

28 retailersHK$178,623 HKD to HK$307,171 HKD

B+
Cheapest Retailer
-
HK$178,623 HKD
$22,767 USD
B+
Retailer 2
-
HK$179,078 HKD
$22,825 USD
View
B+
Retailer 3
-
HK$188,477 HKD
$24,023 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$191,514 HKD
$24,410 USD
View
B+
Retailer 5
-
HK$196,684 HKD
$25,069 USD
View
Retailer 6
-
HK$196,684 HKD
$25,069 USD
View
Price last confirmed 25 days ago
Retailer 7
-
HK$198,261 HKD
A$38,877 AUD
View
Price last confirmed 29 days ago
B+
Retailer 8
-
HK$198,413 HKD
£19,913 GBP
View
B
Retailer 9
-
HK$201,352 HKD
$25,664 USD
View
Retailer 10
-
HK$201,352 HKD
$25,664 USD
View
Price last confirmed 25 days ago
B
Retailer 11
-
HK$201,713 HKD
$25,710 USD
View
B
Retailer 12
-
HK$201,713 HKD
$25,710 USD
View
Retailer 13
-
HK$206,515 HKD
$26,322 USD
View
Price last confirmed 33 days ago
B+
Retailer 14
-
HK$208,382 HKD
$26,560 USD
View
B+
Retailer 15
-
HK$210,230 HKD
$26,796 USD
View
Retailer 16
-
HK$213,074 HKD
$27,158 USD
View
Price last confirmed 25 days ago
Retailer 17
-
HK$213,074 HKD
$27,158 USD
View
Price last confirmed 40 days ago
B
Retailer 18
-
HK$218,689 HKD
$27,874 USD
View
Retailer 19
-
HK$221,264 HKD
$28,202 USD
View
Price last confirmed 34 days ago
Retailer 20
-
HK$221,264 HKD
$28,202 USD
View
Price last confirmed 41 days ago
B
Retailer 21
-
HK$221,264 HKD
$28,202 USD
View
B
Retailer 22
-
HK$237,592 HKD
€28,841 EUR
View
B
Retailer 23
-
HK$260,759 HKD
£26,170 GBP
View
B
Retailer 24
-
HK$271,967 HKD
ZAR 560,007 ZAR
View
B
Retailer 25
-
HK$278,632 HKD
$35,514 USD
View
Retailer 26
-
HK$278,632 HKD
$35,514 USD
View
Price last confirmed 43 days ago
Retailer 27
-
HK$278,632 HKD
$35,514 USD
View
Price last confirmed 36 days ago
Most Expensive
B
MOH London
16EC813E8 · Nov 1
HK$307,171 HKD
£30,828 GBP
View
27 more retailers have this diamond
Prices start from HK$178,623 HKDSave up to HK$128,548 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+
2.57ct Round
HK$178,623 HKD