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Round|Natural|GIA

1.51ct E SI1 Round Natural Diamond

VG • E/SI1 • GIA 2534677624

Certificate GIA 2534677624

Diamond specifications and retailer prices

From $7,707 AUD
HK$42,300 HKD
As of October 29, 2026
Save $9,681 AUD (56%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $17,388 AUD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2534677624. Listed at 24 retailers as of October 27, 2026, with prices from $7,707 to $17,388, a $9,681 spread on the same certified stone. NZ Jewellers lists it at $17,388. 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

1.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 2534677624
Dimensions7.15 × 7.08 × 4.59 mm
L/W Ratio1.01
Top View
7.15 mm7.08 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2534677624
Side View
Table 55.0%Crown 38.5°Girdle: ThickPavilion 39.8°Culet: NoneDepth 64.8%

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: $9,707 AUD|Low: $7,454 AUD|High: $14,762 AUD|Avg: $10,065 AUD|-1.9%
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
Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 11$7,454 AUD
Retailer 7$7,707 AUD
Retailer 14$7,823 AUD
Retailer 6$7,886 AUD
Retailer 16$8,214 AUD
Retailer 5$8,229 AUD
Retailer 10$8,694 AUD
Retailer 9$8,740 AUD
Retailer 1$9,707 AUD
Retailer 2$9,950 AUD
Retailer 18$9,950 AUD
Retailer 4$10,091 AUD
Retailer 17$10,277 AUD
Retailer 15$10,728 AUD
Retailer 12$10,755 AUD
Retailer 3$11,458 AUD
Retailer 8$11,908 AUD
Retailer 19$12,660 AUD
Retailer 13$14,567 AUD

28 data points across 19 retailers

24 retailers$7,707 AUD to $17,388 AUD

A
Retailer 1
-
$7,454 AUD
$5,237 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$7,707 AUD
HK$42,300 HKD
View
A
Retailer 3
-
$7,823 AUD
$5,496 USD
View
A
Retailer 4
-
$7,886 AUD
$5,540 USD
View
A
Retailer 5
-
$8,214 AUD
$5,771 USD
View
A
Retailer 6
-
$8,229 AUD
$5,781 USD
View
A
Retailer 7
-
$8,694 AUD
$6,108 USD
View
A
Retailer 8
-
$8,694 AUD
$6,108 USD
View
Final sale: no returns
A
Retailer 9
-
$8,740 AUD
$6,140 USD
View
A
Retailer 10
-
$9,419 AUD
$6,617 USD
View
A
Retailer 11
-
$9,564 AUD
$6,719 USD
View
A
Retailer 12
-
$9,707 AUD
£5,370 GBP
View
A
Retailer 13
-
$9,950 AUD
$6,990 USD
View
A
Retailer 14
-
$9,950 AUD
$6,990 USD
View
A
Retailer 15
-
$10,091 AUD
View
Price last confirmed 7 days ago
A
Retailer 16
-
$10,277 AUD
$7,220 USD
View
A
Retailer 17
-
$10,728 AUD
€7,178 EUR
View
A
Retailer 18
-
$10,755 AUD
£5,950 GBP
View
B+
Retailer 19
-
$10,868 AUD
$7,635 USD
View
B+
Retailer 20
-
$11,458 AUD
$8,050 USD
View
B+
Retailer 21
-
$11,908 AUD
$8,366 USD
View
B+
Retailer 22
-
$12,660 AUD
ZAR 143,691 ZAR
View
B
Retailer 23
-
$14,567 AUD
£8,058 GBP
View
Most Expensive
B
NZ Jewellers
e4c4a878-f917-4282-bf4c-f5daaf29ee42 · Oct 27
$17,388 AUD
$12,216 USD
View
23 more retailers have this diamond
Prices start from $7,707 AUDSave up to $9,681 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.

A
1.51ct Round
$7,707 AUD