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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 $9,490 NZD
As of November 6, 2026
Save $10,565 NZD (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $20,055 NZD 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 $9,490 to $20,055, a $10,565 spread on the same certified stone. MOH London lists it at $20,055. 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 6
Current: $20,055 NZD|Low: $10,199 NZD|High: $20,296 NZD|Avg: $13,952 NZD|-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 6, 2026
Retailer 7$10,248 NZD
Retailer 10$11,220 NZD
Retailer 3$11,368 NZD
Retailer 11$12,034 NZD
Retailer 14$12,059 NZD
Retailer 12$12,133 NZD
Retailer 5$12,811 NZD
Retailer 13$13,282 NZD
Retailer 4$13,798 NZD
Retailer 9$13,876 NZD
Retailer 2$15,634 NZD
Retailer 6$15,853 NZD
Retailer 8$17,556 NZD
MOH London$20,055 NZD

44 data points across 14 retailers

18 retailers$9,490 NZD to $20,055 NZD

B+
Cheapest Retailer
-
$9,490 NZD
B+
Retailer 2
-
$10,248 NZD
View
B
Retailer 3
-
$11,220 NZD
View
B
Retailer 4
-
$11,220 NZD
View
Retailer 5
-
$11,220 NZD
View
Price last confirmed 10 days ago
B
Retailer 6
-
$11,368 NZD
View
B
Retailer 7
-
$11,581 NZD
View
Retailer 8
-
$12,034 NZD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$12,059 NZD
View
B
Retailer 10
-
$12,133 NZD
View
B
Retailer 11
-
$12,811 NZD
View
B
Retailer 12
-
$13,282 NZD
View
Final sale: no returns
B
Retailer 13
-
$13,798 NZD
View
Retailer 14
-
$13,876 NZD
View
Price last confirmed 16 days ago
B
Retailer 15
-
$15,634 NZD
View
Retailer 16
-
$15,853 NZD
View
Price last confirmed 15 days ago
B
Retailer 17
-
$17,556 NZD
View
Most Expensive
B
MOH London
EA09349D7 · Nov 1
$20,055 NZD
£8,754 GBP
View
17 more retailers have this diamond
Prices start from $9,490 NZDSave up to $10,565 NZD

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
$9,490 NZD