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Heart|Natural|GIA

1.51ct G SI1 Heart Natural Diamond

GD • G/SI1 • GIA 6362740390

Certificate GIA 6362740390

Diamond specifications and retailer prices

From $7,507 AUD
$5,261 USD
As of November 2, 2026
Save $8,357 AUD (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $15,864 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6362740390. Listed at 18 retailers as of November 1, 2026, with prices from $7,507 to $15,864, a $8,357 spread on the same certified stone. MOH London lists it at $15,864. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6362740390
Dimensions6.89 × 6.28 × 4.20 mm
L/W Ratio1.10
Top View
6.89 mm6.28 mm1.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6362740390
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $15,864 AUD|Low: $8,068 AUD|High: $16,054 AUD|Avg: $11,056 AUD|-0.1%
MOH London
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
November 2, 2026
Retailer 7$8,188 AUD
Retailer 10$8,875 AUD
Retailer 3$8,992 AUD
Retailer 11$9,519 AUD
Retailer 14$9,539 AUD
Retailer 12$9,597 AUD
Retailer 5$10,135 AUD
Retailer 13$10,506 AUD
Retailer 4$10,914 AUD
Retailer 9$10,977 AUD
Retailer 2$12,434 AUD
Retailer 6$12,540 AUD
Retailer 8$13,983 AUD
MOH London$15,864 AUD

44 data points across 14 retailers

18 retailers$7,507 AUD to $15,864 AUD

B+
Cheapest Retailer
-
$7,507 AUD
$5,261 USD
B+
Retailer 2
-
$8,188 AUD
£4,518 GBP
View
B
Retailer 3
-
$8,875 AUD
$6,220 USD
View
B
Retailer 4
-
$8,875 AUD
$6,220 USD
View
B
Retailer 5
-
$8,875 AUD
$6,220 USD
View
B
Retailer 6
-
$8,992 AUD
$6,302 USD
View
B
Retailer 7
-
$9,161 AUD
$6,420 USD
View
B
Retailer 8
-
$9,519 AUD
$6,671 USD
View
B
Retailer 9
-
$9,539 AUD
$6,685 USD
View
B
Retailer 10
-
$9,597 AUD
$6,726 USD
View
B
Retailer 11
-
$10,135 AUD
$7,103 USD
View
B
Retailer 12
-
$10,506 AUD
$7,363 USD
View
Final sale: no returns
B
Retailer 13
-
$10,914 AUD
$7,649 USD
View
Retailer 14
-
$10,977 AUD
View
Price last confirmed 11 days ago
B
Retailer 15
-
$12,434 AUD
€8,299 EUR
View
Retailer 16
-
$12,540 AUD
$8,788 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$13,983 AUD
ZAR 158,317 ZAR
View
Most Expensive
B
MOH London
EA09349D7 · Nov 1
$15,864 AUD
£8,754 GBP
View
17 more retailers have this diamond
Prices start from $7,507 AUDSave up to $8,357 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+
1.51ct Heart
$7,507 AUD