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Round|Natural|GIA

1.50ct D SI1 Round Natural Diamond

VG • D/SI1 • GIA 2101514898

Certificate GIA 2101514898

Diamond specifications and retailer prices

From $20,823 AUD
$14,627 USD
As of October 30, 2026
Save $14,145 AUD (40%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $41,825 AUD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2101514898. Listed at 25 retailers as of October 27, 2026, with a 68% 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

1.50
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2101514898
Dimensions7.56 × 7.49 × 4.44 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.56 mm7.49 mm1.50 ctD / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2101514898
Side View
Table 55.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 59.0%

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: $24,501 AUD|Low: $19,940 AUD|High: $37,821 AUD|Avg: $26,866 AUD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10$20,823 AUD
Retailer 7$20,898 AUD
Retailer 8$22,931 AUD
Retailer 1$24,501 AUD
Retailer 6$25,100 AUD
Retailer 9$25,524 AUD
Retailer 2$26,919 AUD
Retailer 3$28,015 AUD
Retailer 5$34,968 AUD
Retailer 4$37,570 AUD

43 data points across 10 retailers

25 retailers$20,823 AUD to $34,968 AUD

B
Cheapest Retailer
-
$20,823 AUD
$14,627 USD
B
Retailer 2
-
$20,898 AUD
$14,680 USD
View
B
Retailer 3
-
$21,913 AUD
$15,393 USD
View
B
Retailer 4
-
$21,997 AUD
$15,452 USD
View
B
Retailer 5
-
$22,439 AUD
CA$21,892 CAD
View
B
Retailer 6
-
$22,453 AUD
$15,772 USD
View
B
Retailer 7
-
$22,931 AUD
$16,108 USD
View
Final sale: no returns
B
Retailer 8
-
$23,418 AUD
$16,450 USD
View
B
Retailer 9
-
$23,928 AUD
$16,808 USD
View
Retailer 10
-
$24,346 AUD
$17,102 USD
View
Price last confirmed 13 days ago
B
Retailer 11
-
$24,501 AUD
£13,551 GBP
View
Retailer 12
-
$25,100 AUD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$25,524 AUD
$17,929 USD
View
B
Retailer 14
-
$25,783 AUD
$18,111 USD
View
B
Retailer 15
-
$25,922 AUD
$18,209 USD
View
B
Retailer 16
-
$26,636 AUD
$18,710 USD
View
B
Retailer 17
-
$26,636 AUD
$18,710 USD
View
B
Retailer 18
-
$26,919 AUD
$18,909 USD
View
B
Retailer 19
-
$27,518 AUD
$19,330 USD
View
B
Retailer 20
-
$27,827 AUD
$19,547 USD
View
B
Retailer 21
-
$28,015 AUD
€18,742 EUR
View
B
Retailer 22
-
$33,899 AUD
$23,812 USD
View
B
Retailer 23
-
$34,968 AUD
ZAR 396,815 ZAR
View
Retailer 24
-
$37,570 AUD
£20,780 GBP
View
Price under review
Most Expensive
Diamond Quarter
1.5SI1D219820ECN · Oct 29
$41,825 AUD
£23,133 GBP
View
Price under review
24 more retailers have this diamond
Prices start from $20,823 AUDSave up to $14,145 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
1.50ct Round
$20,823 AUD