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Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6552615902

Certificate GIA 6552615902

Diamond specifications and retailer prices

From $2,422 SGD
HK$14,800 HKD
As of October 29, 2026
Save $1,504 SGD (38%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $6,839 SGD at NZ Jewellers · As of October 6, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552615902. Listed at 24 retailers as of October 29, 2026, with a 62% 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

1.00
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6552615902
Dimensions6.34 × 6.40 × 3.91 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.34 mm6.40 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552615902
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.4%

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: Oct 29
Current: $2,787 SGD|Low: $2,355 SGD|High: $5,801 SGD|Avg: $3,434 SGD|-8.9%
Retailer 1
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 14$2,422 SGD
Retailer 7$2,439 SGD
Retailer 2$2,628 SGD
Retailer 16$2,686 SGD
Retailer 1$2,787 SGD
Retailer 18$2,953 SGD
Retailer 4$3,062 SGD
Retailer 15$3,108 SGD
Retailer 8$3,323 SGD
Retailer 17$3,349 SGD
Retailer 19$3,349 SGD
Retailer 3$3,464 SGD
Retailer 12$3,539 SGD
Retailer 11$3,665 SGD
Retailer 5$3,749 SGD
Retailer 6$3,774 SGD
Retailer 13$3,926 SGD
Retailer 10$3,973 SGD
Retailer 9$5,687 SGD

25 data points across 19 retailers

24 retailers$2,422 SGD to $3,926 SGD

A
Cheapest Retailer
-
$2,422 SGD
HK$14,800 HKD
Retailer 2
-
$2,439 SGD
₹181,736 INR
View
Price last confirmed 17 days ago
A
Retailer 3
-
$2,576 SGD
$2,015 USD
View
A
Retailer 4
-
$2,628 SGD
$2,056 USD
View
A
Retailer 5
-
$2,686 SGD
$2,101 USD
View
Final sale: no returns
A
Retailer 6
-
$2,787 SGD
$2,180 USD
View
A
Retailer 7
-
$2,953 SGD
$2,310 USD
View
B+
Retailer 8
-
$3,062 SGD
$2,395 USD
View
B+
Retailer 9
-
$3,108 SGD
£1,914 GBP
View
B+
Retailer 10
-
$3,195 SGD
$2,499 USD
View
Retailer 11
-
$3,211 SGD
$2,512 USD
View
Price last confirmed 16 days ago
Retailer 12
-
$3,323 SGD
View
Price last confirmed 16 days ago
Retailer 13
-
$3,332 SGD
$2,606 USD
View
Price last confirmed 38 days ago
B+
Retailer 14
-
$3,349 SGD
$2,620 USD
View
B+
Retailer 15
-
$3,349 SGD
$2,620 USD
View
B+
Retailer 16
-
$3,464 SGD
$2,710 USD
View
B+
Retailer 17
-
$3,539 SGD
£2,180 GBP
View
Retailer 18
-
$3,665 SGD
A$4,411 AUD
View
Price last confirmed 25 days ago
Retailer 19
-
$3,775 SGD
$2,953 USD
View
Price last confirmed 33 days ago
B+
Retailer 20
-
$3,926 SGD
$3,071 USD
View
Retailer 21
-
$3,973 SGD
ZAR 50,202 ZAR
View
Price last confirmed 20 days ago
Retailer 22
-
$5,687 SGD
£3,503 GBP
View
Price last confirmed 17 days ago
Retailer 23
-
$6,839 SGD
$5,350 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
31f90981-d8e1-4b67-a371-643a28bf8e65 · Oct 6
$6,839 SGD
$5,350 USD
View
Price last confirmed 26 days ago
23 more retailers have this diamond
Prices start from $2,422 SGDSave up to $1,504 SGD

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
1.00ct Round
$2,422 SGD