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Heart|Natural|GIA

1.51ct K SI1 Heart Natural Diamond

GD • K/SI1 • GIA 6462181862

Certificate GIA 6462181862

Diamond specifications and retailer prices

From $5,287 NZD
As of November 6, 2026
Save $6,046 NZD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $11,333 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6462181862. Listed at 10 retailers as of November 4, 2026, with prices from $5,287 to $11,333, a $6,046 spread on the same certified stone. MOH London lists it at $11,333. 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
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6462181862
Dimensions7.28 × 6.05 × 4.25 mm
L/W Ratio1.20
Top View
7.28 mm6.05 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6462181862
Side View
Table 53.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.2%

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: $11,333 NZD|Low: $5,217 NZD|High: $11,501 NZD|Avg: $7,497 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$5,287 NZD
Retailer 6$6,032 NZD
Retailer 8$6,503 NZD
Retailer 7$6,795 NZD
Retailer 4$7,035 NZD
Retailer 9$7,342 NZD
Retailer 2$7,910 NZD
Retailer 3$8,294 NZD
MOH London$11,333 NZD

40 data points across 9 retailers

10 retailers$5,287 NZD to $11,333 NZD

B+
Cheapest Retailer
-
$5,287 NZD
B+
Retailer 2
-
$6,032 NZD
View
B+
Retailer 3
-
$6,503 NZD
View
Retailer 4
-
$6,795 NZD
View
Price last confirmed 30 days ago
B+
Retailer 5
-
$7,035 NZD
View
B
Retailer 6
-
$7,057 NZD
View
B
Retailer 7
-
$7,342 NZD
View
B
Retailer 8
-
$7,910 NZD
View
B
Retailer 9
-
$8,294 NZD
View
Most Expensive
C
MOH London
BD868D2F7 · Nov 4
$11,333 NZD
£4,947 GBP
View
9 more retailers have this diamond
Prices start from $5,287 NZDSave up to $6,046 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
$5,287 NZD