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Round|Natural|GIA

1.02ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1236370974

Certificate GIA 1236370974

Diamond specifications and retailer prices

From $3,540 CAD
HK$19,800 HKD
As of October 29, 2026
Save $4,668 CAD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,208 CAD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct 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 1236370974. Listed at 15 retailers as of October 29, 2026, with prices from $3,540 to $8,208, a $4,668 spread on the same certified stone. NZ Jewellers lists it at $8,208. 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

1.02
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1236370974
Dimensions6.43 × 6.41 × 3.97 mm
L/W Ratio1.00
Star length55%
Lower girdle75%
Key to symbols
Crystal, Feather, Knot, Needle
Top View
6.43 mm6.41 mm1.02 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1236370974
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.9%

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: $4,893 CAD|Low: $3,540 CAD|High: $7,974 CAD|Avg: $5,169 CAD|+2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 6$3,540 CAD
Retailer 7$4,182 CAD
Retailer 8$4,349 CAD
Retailer 10$4,547 CAD
Retailer 2$4,712 CAD
Retailer 1$4,893 CAD
Retailer 9$5,033 CAD
Retailer 3$5,518 CAD
Retailer 5$5,737 CAD
Retailer 4$7,921 CAD

44 data points across 10 retailers

15 retailers$3,540 CAD to $8,208 CAD

A
Cheapest Retailer
-
$3,540 CAD
HK$19,800 HKD
A
Retailer 2
-
$4,182 CAD
$2,994 USD
View
B+
Retailer 3
-
$4,349 CAD
$3,113 USD
View
Final sale: no returns
B+
Retailer 4
-
$4,547 CAD
$3,255 USD
View
B+
Retailer 5
-
$4,712 CAD
$3,373 USD
View
B+
Retailer 6
-
$4,712 CAD
$3,373 USD
View
B+
Retailer 7
-
$4,892 CAD
$3,502 USD
View
B+
Retailer 8
-
$4,893 CAD
£2,758 GBP
View
B+
Retailer 9
-
$4,913 CAD
$3,517 USD
View
Retailer 10
-
$5,033 CAD
A$5,543 AUD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$5,437 CAD
$3,892 USD
View
B+
Retailer 12
-
$5,518 CAD
€3,762 EUR
View
B+
Retailer 13
-
$5,737 CAD
ZAR 66,347 ZAR
View
B
Retailer 14
-
$7,921 CAD
£4,465 GBP
View
Most Expensive
B
NZ Jewellers
c1f75fdc-853b-40e8-9dbe-3ee0c257e535 · Oct 30
$8,208 CAD
$5,876 USD
View
14 more retailers have this diamond
Prices start from $3,540 CADSave up to $4,668 CAD

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
1.02ct Round
$3,540 CAD