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Heart|Natural|GIA

1.51ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 1483382477

Certificate GIA 1483382477

Diamond specifications and retailer prices

From $10,059 NZD
As of November 4, 2026
Save $8,647 NZD (46%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $18,706 NZD at MOH London · As of November 4, 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 I 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 1483382477. Listed at 19 retailers as of November 4, 2026, with prices from $10,059 to $18,706, a $8,647 spread on the same certified stone. MOH London lists it at $18,706. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1483382477
Dimensions6.95 × 6.68 × 4.49 mm
L/W Ratio1.04
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Natural
Top View
6.95 mm6.68 mm1.51 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1483382477
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.2%

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: Nov 4
Current: $18,706 NZD|Low: $9,757 NZD|High: $18,983 NZD|Avg: $12,383 NZD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3$10,059 NZD
Retailer 9$10,264 NZD
Retailer 11$10,647 NZD
Retailer 12$10,724 NZD
Retailer 4$10,735 NZD
Retailer 2$12,014 NZD
Retailer 6$12,088 NZD
Retailer 10$12,207 NZD
Retailer 8$12,355 NZD
Retailer 5$13,832 NZD
Retailer 7$15,533 NZD
MOH London$18,706 NZD

37 data points across 12 retailers

19 retailers$10,059 NZD to $18,706 NZD

B
Cheapest Retailer
-
$10,059 NZD
B
Retailer 2
-
$10,264 NZD
View
B
Retailer 3
-
$10,647 NZD
View
Final sale: no returns
B
Retailer 4
-
$10,724 NZD
View
B
Retailer 5
-
$10,735 NZD
View
B
Retailer 6
-
$11,359 NZD
View
Retailer 7
-
$11,534 NZD
View
Price last confirmed 30 days ago
B
Retailer 8
-
$12,014 NZD
View
B
Retailer 9
-
$12,088 NZD
View
B
Retailer 10
-
$12,207 NZD
View
B
Retailer 11
-
$12,339 NZD
View
B
Retailer 12
-
$12,339 NZD
View
Retailer 13
-
$12,355 NZD
View
Price last confirmed 16 days ago
B
Retailer 14
-
$12,736 NZD
View
B
Retailer 15
-
$13,024 NZD
View
B
Retailer 16
-
$13,832 NZD
View
Retailer 17
-
$14,031 NZD
View
Price last confirmed 23 days ago
B
Retailer 18
-
$15,533 NZD
View
Most Expensive
C
MOH London
A114A9F5E · Nov 4
$18,706 NZD
£8,165 GBP
View
18 more retailers have this diamond
Prices start from $10,059 NZDSave up to $8,647 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
$10,059 NZD