Round|Natural|GIA

1.01ct E SI1 Round Natural Diamond

VG • E/SI1 • GIA 2155659891

Certificate GIA 2155659891

Diamond specifications and retailer prices

From $9,216 AUD
$6,474 USD
As of October 30, 2026
Save $5,624 AUD (38%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $20,385 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2155659891. Listed at 23 retailers as of October 27, 2026, with a 61% 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

1.01
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2155659891
Dimensions6.51 × 6.48 × 3.89 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.51 mm6.48 mm1.01 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2155659891
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 59.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $20,385 AUD|Low: $8,493 AUD|High: $20,385 AUD|Avg: $12,992 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 8$9,204 AUD
Retailer 3$10,193 AUD
Retailer 9$10,193 AUD
Retailer 10$11,212 AUD
Retailer 2$11,276 AUD
Retailer 7$11,537 AUD
Retailer 4$12,661 AUD
Retailer 11$12,741 AUD
Retailer 6$14,840 AUD
Retailer 5$17,076 AUD
NZ Jewellers$20,385 AUD

43 data points across 11 retailers

23 retailers$9,216 AUD to $14,840 AUD

Retailer 1
-
$9,204 AUD
$6,465 USD
Price last confirmed 9 days ago
B
Retailer 2
-
$9,216 AUD
$6,474 USD
View
B
Retailer 3
-
$9,542 AUD
$6,703 USD
View
B
Retailer 4
-
$10,066 AUD
CA$9,821 CAD
View
B
Retailer 5
-
$10,186 AUD
$7,155 USD
View
B
Retailer 6
-
$10,193 AUD
$7,160 USD
View
Final sale: no returns
B
Retailer 7
-
$10,193 AUD
$7,160 USD
View
B
Retailer 8
-
$10,371 AUD
$7,285 USD
View
B
Retailer 9
-
$11,041 AUD
$7,756 USD
View
B
Retailer 10
-
$11,212 AUD
$7,876 USD
View
B
Retailer 11
-
$11,276 AUD
£6,237 GBP
View
Retailer 12
-
$11,537 AUD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$12,081 AUD
$8,486 USD
View
B
Retailer 14
-
$12,158 AUD
$8,540 USD
View
B
Retailer 15
-
$12,158 AUD
$8,540 USD
View
B
Retailer 16
-
$12,570 AUD
$8,830 USD
View
B
Retailer 17
-
$12,661 AUD
€8,470 EUR
View
B
Retailer 18
-
$12,741 AUD
$8,950 USD
View
Retailer 19
-
$13,425 AUD
$9,430 USD
View
Price last confirmed 8 days ago
B
Retailer 20
-
$14,840 AUD
ZAR 168,408 ZAR
View
Retailer 21
-
$17,076 AUD
£9,445 GBP
View
Price under review
Retailer 22
-
$18,634 AUD
£10,307 GBP
View
Price under review
Most Expensive
NZ Jewellers
f516f942-039c-4f6e-b33e-34be1018c57d · Oct 30
$20,385 AUD
$14,319 USD
View
Price under review
22 more retailers have this diamond
Prices start from $9,216 AUDSave up to $5,624 AUD

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.

B
1.01ct Round
$9,216 AUD