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Round|Natural|GIA

1.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6562648114

Certificate GIA 6562648114

Diamond specifications and retailer prices

From $8,437 AUD
HK$46,300 HKD
As of November 1, 2026
Save $10,773 AUD (56%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $19,210 AUD at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6562648114. Listed at 23 retailers as of October 30, 2026, with prices from $8,437 to $19,210, a $10,773 spread on the same certified stone. NZ Jewellers lists it at $19,210. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6562648114
Dimensions7.38 × 7.42 × 4.47 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle
Top View
7.38 mm7.42 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562648114
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.3%

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: Nov 1
Current: $19,210 AUD|Low: $8,309 AUD|High: $19,444 AUD|Avg: $12,024 AUD|-1.2%
NZ Jewellers
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
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 2, 2026
Retailer 11$8,380 AUD
Retailer 20$8,437 AUD
Retailer 18$8,648 AUD
Retailer 5$9,024 AUD
Retailer 7$9,074 AUD
Retailer 8$9,604 AUD
Retailer 22$9,605 AUD
Retailer 21$9,624 AUD
Retailer 6$10,405 AUD
Retailer 4$10,566 AUD
Retailer 13$10,760 AUD
Retailer 14$11,143 AUD
Retailer 12$11,728 AUD
Retailer 15$11,967 AUD
Retailer 9$12,007 AUD
Retailer 17$12,495 AUD
Retailer 23$12,653 AUD
Retailer 2$12,727 AUD
Retailer 19$14,110 AUD
Retailer 10$15,959 AUD
Retailer 3$16,093 AUD
Retailer 16$17,506 AUD
NZ Jewellers$19,210 AUD

18 data points across 23 retailers

23 retailers$8,437 AUD to $19,210 AUD

Retailer 1
-
$8,380 AUD
₹560,621 INR
Price last confirmed 7 days ago
A
Retailer 2
-
$8,437 AUD
HK$46,300 HKD
View
B+
Retailer 3
-
$8,648 AUD
$6,075 USD
View
B+
Retailer 4
-
$9,024 AUD
$6,339 USD
View
B+
Retailer 5
-
$9,074 AUD
$6,374 USD
View
B+
Retailer 6
-
$9,604 AUD
$6,746 USD
View
Final sale: no returns
B+
Retailer 7
-
$9,605 AUD
$6,747 USD
View
B+
Retailer 8
-
$9,624 AUD
$6,760 USD
View
B+
Retailer 9
-
$10,405 AUD
$7,309 USD
View
B+
Retailer 10
-
$10,566 AUD
$7,422 USD
View
B+
Retailer 11
-
$10,760 AUD
£5,951 GBP
View
Retailer 12
-
$11,143 AUD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
$11,387 AUD
$7,999 USD
View
Retailer 14
-
$11,728 AUD
$8,238 USD
View
Price last confirmed 7 days ago
Retailer 15
-
$11,967 AUD
$8,406 USD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
$12,007 AUD
$8,434 USD
View
B
Retailer 17
-
$12,495 AUD
€8,359 EUR
View
B
Retailer 18
-
$12,727 AUD
£7,040 GBP
View
B
Retailer 19
-
$14,110 AUD
ZAR 160,122 ZAR
View
B
Retailer 20
-
$15,959 AUD
View
B
Retailer 21
-
$16,093 AUD
£8,901 GBP
View
Retailer 22
-
$17,506 AUD
$12,297 USD
View
Price last confirmed 7 days ago
Most Expensive
B
NZ Jewellers
24298d9f-e214-473b-ac18-a54be360c38f · Oct 30
$19,210 AUD
$13,494 USD
View
22 more retailers have this diamond
Prices start from $8,437 AUDSave up to $10,773 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
$8,437 AUD