Round|Natural|GIA

1.01ct E SI1 Round Natural Diamond

VG • E/SI1 • GIA 2155659891

Certificate GIA 2155659891

Diamond specifications and retailer prices

From $8,276 SGD
$6,474 USD
As of October 30, 2026
Save $5,050 SGD (38%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $18,305 SGD 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

How it works →
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: $10,126 SGD|Low: $7,627 SGD|High: $15,437 SGD|Avg: $11,207 SGD|+0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 6$8,265 SGD
Retailer 7$9,153 SGD
Retailer 1$10,126 SGD
Retailer 5$10,360 SGD
Retailer 2$11,369 SGD
Retailer 4$13,327 SGD
Retailer 3$15,335 SGD

42 data points across 7 retailers

23 retailers$8,276 SGD to $13,327 SGD

Retailer 1
-
$8,265 SGD
$6,465 USD
Price last confirmed 9 days ago
B
Retailer 2
-
$8,276 SGD
$6,474 USD
View
B
Retailer 3
-
$8,569 SGD
$6,703 USD
View
B
Retailer 4
-
$9,040 SGD
CA$9,821 CAD
View
B
Retailer 5
-
$9,147 SGD
$7,155 USD
View
B
Retailer 6
-
$9,153 SGD
$7,160 USD
View
Final sale: no returns
B
Retailer 7
-
$9,153 SGD
$7,160 USD
View
B
Retailer 8
-
$9,313 SGD
$7,285 USD
View
B
Retailer 9
-
$9,915 SGD
$7,756 USD
View
B
Retailer 10
-
$10,069 SGD
$7,876 USD
View
B
Retailer 11
-
$10,126 SGD
£6,237 GBP
View
Retailer 12
-
$10,360 SGD
A$12,468 AUD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$10,849 SGD
$8,486 USD
View
B
Retailer 14
-
$10,918 SGD
$8,540 USD
View
B
Retailer 15
-
$10,918 SGD
$8,540 USD
View
B
Retailer 16
-
$11,288 SGD
$8,830 USD
View
B
Retailer 17
-
$11,369 SGD
€8,470 EUR
View
B
Retailer 18
-
$11,442 SGD
$8,950 USD
View
Retailer 19
-
$12,055 SGD
$9,430 USD
View
Price last confirmed 8 days ago
B
Retailer 20
-
$13,327 SGD
ZAR 168,408 ZAR
View
Retailer 21
-
$15,335 SGD
£9,445 GBP
View
Price under review
Retailer 22
-
$16,733 SGD
£10,307 GBP
View
Price under review
Most Expensive
NZ Jewellers
f516f942-039c-4f6e-b33e-34be1018c57d · Oct 30
$18,305 SGD
$14,319 USD
View
Price under review
22 more retailers have this diamond
Prices start from $8,276 SGDSave up to $5,050 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.

B
1.01ct Round
$8,276 SGD