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Heart|Natural|GIA

1.01ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 6545398875

Certificate GIA 6545398875

Diamond specifications and retailer prices

From $1,996 SGD
HK$12,200 HKD
As of November 1, 2026
Save $2,701 SGD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,954 SGD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.01ct natural heart diamond

This 1.01ct natural heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545398875. Listed at 19 retailers as of October 29, 2026, with a 135% 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

1.01
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle37.4°
OriginNatural
Grading LabGIA
CertificateGIA 6545398875
Dimensions5.94 × 6.90 × 4.16 mm
L/W Ratio1.16
Top View
5.94 mm6.90 mm1.01 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545398875
Side View
Table 56.0%CrownGirdle: STK-VTKPavilion 37.4°Culet: NoneDepth 60.3%

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: $2,191 SGD|Low: $1,996 SGD|High: $4,876 SGD|Avg: $2,882 SGD|-4.9%
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
November 2, 2026
Retailer 12$1,996 SGD
Retailer 1$2,191 SGD
Retailer 10$2,241 SGD
Retailer 15$2,301 SGD
Retailer 3$2,316 SGD
Retailer 13$2,359 SGD
Retailer 11$2,455 SGD
Retailer 5$2,461 SGD
Retailer 4$2,627 SGD
Retailer 9$2,876 SGD
Retailer 16$2,922 SGD
Retailer 7$2,937 SGD
Retailer 14$3,277 SGD
Retailer 8$3,390 SGD
Retailer 6$4,279 SGD
Retailer 2$4,697 SGD

27 data points across 16 retailers

19 retailers$1,996 SGD to $4,697 SGD

A
Cheapest Retailer
-
$1,996 SGD
HK$12,200 HKD
A
Retailer 2
-
$2,191 SGD
$1,714 USD
View
Final sale: no returns
A
Retailer 3
-
$2,241 SGD
$1,753 USD
View
A
Retailer 4
-
$2,301 SGD
$1,800 USD
View
A
Retailer 5
-
$2,316 SGD
$1,812 USD
View
A
Retailer 6
-
$2,359 SGD
€1,758 EUR
View
A
Retailer 7
-
$2,455 SGD
$1,920 USD
View
A
Retailer 8
-
$2,461 SGD
$1,925 USD
View
A
Retailer 9
-
$2,627 SGD
$2,055 USD
View
A
Retailer 10
-
$2,876 SGD
£1,771 GBP
View
B+
Retailer 11
-
$2,922 SGD
$2,286 USD
View
Retailer 12
-
$2,922 SGD
$2,286 USD
View
Price last confirmed 11 days ago
Retailer 13
-
$2,925 SGD
$2,288 USD
View
Price last confirmed 39 days ago
A
Retailer 14
-
$2,937 SGD
View
B+
Retailer 15
-
$3,277 SGD
ZAR 41,414 ZAR
View
Retailer 16
-
$3,390 SGD
A$4,080 AUD
View
Price last confirmed 26 days ago
Retailer 17
-
$4,279 SGD
$3,347 USD
View
Price last confirmed 9 days ago
B
Retailer 18
-
$4,697 SGD
£2,893 GBP
View
Most Expensive
NZ Jewellers
da600e29-a316-440f-895c-530c3a04527f · Sep 25
$5,954 SGD
$4,657 USD
View
Price last confirmed 37 days ago
18 more retailers have this diamond
Prices start from $1,996 SGDSave up to $2,701 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
1.01ct Heart
$1,996 SGD