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Round|Natural|GIA

1.00ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5406598535

Certificate GIA 5406598535

Diamond specifications and retailer prices

From $2,457 USD
₹234,036 INR
As of October 31, 2026
Save $4,309 USD (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,766 USD at Diamond Quarter · As of November 2, 2026
View at Diamond Quarter

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5406598535. Listed at 21 retailers as of October 31, 2026, with prices from $2,457 to $6,766, a $4,309 spread on the same certified stone. Diamond Quarter lists it at $6,766. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle32.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5406598535
Dimensions6.54 × 6.52 × 3.88 mm
L/W Ratio1.00
Top View
6.54 mm6.52 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5406598535
Side View
Table 58.0%Crown 32.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.4%

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 31
Current: $3,284 USD|Low: $2,451 USD|High: $5,975 USD|Avg: $3,529 USD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$2,457 USD
Retailer 8$2,496 USD
Retailer 10$2,735 USD
Retailer 2$3,105 USD
Retailer 11$3,110 USD
Retailer 3$3,150 USD
Retailer 1$3,284 USD
Retailer 5$3,516 USD
Retailer 9$3,599 USD
Retailer 6$4,195 USD
Retailer 4$5,707 USD

28 data points across 11 retailers

21 retailers$2,457 USD to $6,766 USD

A
Cheapest Retailer
-
$2,457 USD
₹234,036 INR
A
Retailer 2
-
$2,496 USD
HK$19,500 HKD
View
A
Retailer 3
-
$2,735 USD
A$4,208 AUD
View
A
Retailer 4
-
$2,944 USD
View
B+
Retailer 5
-
$3,105 USD
View
B+
Retailer 6
-
$3,110 USD
View
B+
Retailer 7
-
$3,150 USD
View
Final sale: no returns
B+
Retailer 8
-
$3,284 USD
£2,586 GBP
View
B+
Retailer 9
-
$3,413 USD
View
B+
Retailer 10
-
$3,413 USD
View
B+
Retailer 11
-
$3,467 USD
SGD 4,685 SGD
View
B+
Retailer 12
-
$3,516 USD
£2,768 GBP
View
B+
Retailer 13
-
$3,544 USD
View
B+
Retailer 14
-
$3,599 USD
€3,428 EUR
View
Retailer 15
-
$3,660 USD
A$5,630 AUD
View
Price last confirmed 28 days ago
B+
Retailer 16
-
$3,938 USD
View
B+
Retailer 17
-
$4,195 USD
ZAR 67,775 ZAR
View
B
Retailer 18
-
$5,707 USD
£4,494 GBP
View
B
Retailer 19
-
$5,946 USD
View
B
Retailer 20
-
$6,313 USD
View
Most Expensive
B
Diamond Quarter
1.0SI1D5435FF5FN · Nov 2
$6,766 USD
£5,328 GBP
View
20 more retailers have this diamond
Prices start from $2,457 USDSave up to $4,309 USD

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
$2,457 USD