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Round|Natural|GIA

1.51ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 7496110955

Certificate GIA 7496110955

Diamond specifications and retailer prices

From $6,542 AUD
HK$35,900 HKD
As of October 31, 2026
Save $6,416 AUD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $15,114 AUD at NZ Jewellers · As of September 28, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7496110955. Listed at 15 retailers as of October 29, 2026, with a 98% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceVery Strong
Crown angle32°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7496110955
Dimensions7.42 × 7.39 × 4.48 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Top View
7.42 mm7.39 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceVery Strong
CertificateGIA 7496110955
Side View
Table 59.0%Crown 32°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.6%

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 31
Current: $6,542 AUD|Low: $6,381 AUD|High: $13,473 AUD|Avg: $8,402 AUD|-5.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 1$6,542 AUD
Retailer 11$6,719 AUD
Retailer 9$6,912 AUD
Retailer 2$6,941 AUD
Retailer 8$7,316 AUD
Retailer 12$7,816 AUD
Retailer 4$7,978 AUD
Retailer 5$8,337 AUD
Retailer 6$9,034 AUD
Retailer 3$9,710 AUD
Retailer 10$10,012 AUD
Retailer 7$12,958 AUD

25 data points across 12 retailers

15 retailers$6,542 AUD to $12,958 AUD

A
Cheapest Retailer
-
$6,542 AUD
HK$35,900 HKD
A
Retailer 2
-
$6,719 AUD
$4,720 USD
View
A
Retailer 3
-
$6,912 AUD
$4,855 USD
View
A
Retailer 4
-
$6,941 AUD
$4,876 USD
View
A
Retailer 5
-
$7,316 AUD
$5,139 USD
View
Final sale: no returns
A
Retailer 6
-
$7,816 AUD
$5,490 USD
View
Retailer 7
-
$7,978 AUD
$5,604 USD
View
Price last confirmed 30 days ago
Retailer 8
-
$7,978 AUD
$5,604 USD
View
Price last confirmed 32 days ago
A
Retailer 9
-
$8,337 AUD
£4,611 GBP
View
A
Retailer 10
-
$9,034 AUD
€6,044 EUR
View
Retailer 11
-
$9,446 AUD
$6,635 USD
View
Price last confirmed 32 days ago
Retailer 12
-
$9,710 AUD
$6,821 USD
View
Price last confirmed 8 days ago
A
Retailer 13
-
$10,012 AUD
$7,033 USD
View
B+
Retailer 14
-
$12,958 AUD
£7,167 GBP
View
Most Expensive
NZ Jewellers
475f882d-e8cc-4878-bdd1-c9f800fcf2c3 · Sep 28
$15,114 AUD
$10,617 USD
View
Price last confirmed 34 days ago
14 more retailers have this diamond
Prices start from $6,542 AUDSave up to $6,416 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
$6,542 AUD