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Round|Natural|GIA

1.00ct H SI1 Round Natural Diamond

VG • H/SI1 • GIA 6541813757

Certificate GIA 6541813757

Diamond specifications and retailer prices

From $2,324 SGD
HK$14,200 HKD
As of November 1, 2026
Save $2,921 SGD (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $6,258 SGD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6541813757. Listed at 25 retailers as of November 1, 2026, with a 126% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6541813757
Dimensions6.30 × 6.39 × 3.88 mm
L/W Ratio1.01
Top View
6.30 mm6.39 mm1.00 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541813757
Side View
Table 65.0%Crown 33.5°Girdle: THN-THKPavilion 41.2°Culet: NoneDepth 61.1%

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: Nov 1
Current: $2,344 SGD|Low: $2,258 SGD|High: $5,307 SGD|Avg: $3,344 SGD|+0.0%
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
November 1, 2026
Retailer 11$2,324 SGD
Retailer 1$2,344 SGD
Retailer 4$2,641 SGD
Retailer 5$2,761 SGD
Retailer 7$2,880 SGD
Retailer 13$3,081 SGD
Retailer 10$3,239 SGD
Retailer 2$3,288 SGD
Retailer 9$3,638 SGD
Retailer 12$3,679 SGD
Retailer 6$3,685 SGD
Retailer 14$4,372 SGD
Retailer 3$4,494 SGD
Retailer 8$5,244 SGD

29 data points across 14 retailers

25 retailers$2,324 SGD to $5,244 SGD

A
Cheapest Retailer
-
$2,324 SGD
HK$14,200 HKD
A
Retailer 2
-
$2,344 SGD
₹174,634 INR
View
A
Retailer 3
-
$2,641 SGD
View
B+
Retailer 4
-
$2,648 SGD
$2,071 USD
View
B+
Retailer 5
-
$2,704 SGD
$2,115 USD
View
B+
Retailer 6
-
$2,761 SGD
$2,160 USD
View
Final sale: no returns
Retailer 7
-
$2,786 SGD
$2,179 USD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
$2,880 SGD
£1,774 GBP
View
B+
Retailer 9
-
$2,991 SGD
$2,340 USD
View
Retailer 10
-
$2,993 SGD
$2,341 USD
View
Price last confirmed 16 days ago
Retailer 11
-
$2,993 SGD
$2,341 USD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$3,081 SGD
$2,410 USD
View
Retailer 13
-
$3,131 SGD
$2,449 USD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
$3,172 SGD
$2,481 USD
View
B+
Retailer 15
-
$3,232 SGD
View
B+
Retailer 16
-
$3,239 SGD
£1,995 GBP
View
B+
Retailer 17
-
$3,288 SGD
$2,572 USD
View
Retailer 18
-
$3,453 SGD
$2,701 USD
View
Price last confirmed 9 days ago
B+
Retailer 19
-
$3,638 SGD
€2,710 EUR
View
B+
Retailer 20
-
$3,679 SGD
ZAR 46,492 ZAR
View
Retailer 21
-
$3,685 SGD
A$4,435 AUD
View
Price last confirmed 24 days ago
B
Retailer 22
-
$4,372 SGD
$3,420 USD
View
B
Retailer 23
-
$4,494 SGD
$3,516 USD
View
B
Retailer 24
-
$5,244 SGD
£3,230 GBP
View
Most Expensive
NZ Jewellers
c53fcd5d-9abf-4a5d-8c40-9f1a28687dcd · Oct 20
$6,258 SGD
$4,895 USD
View
Price last confirmed 12 days ago
24 more retailers have this diamond
Prices start from $2,324 SGDSave up to $2,921 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
$2,324 SGD