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Heart|Natural|GIA

1.51ct K SI2 Heart Natural Diamond

VG • K/SI2 • GIA 5231702396

Certificate GIA 5231702396

Diamond specifications and retailer prices

From $2,277 USD
As of November 1, 2026
Save $2,484 USD (52%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,761 USD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5231702396. Listed at 6 retailers as of November 1, 2026, with prices from $2,277 to $4,761, a $2,484 spread on the same certified stone. NZ Jewellers lists it at $4,761. 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
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.76°
Pavilion angle39.2°
OriginNatural
Grading LabGIA
CertificateGIA 5231702396
Dimensions7.10 × 8.09 × 4.52 mm
L/W Ratio1.14
Top View
7.10 mm8.09 mm1.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5231702396
Side View
Table 65.0%Crown 36.76°GirdlePavilion 39.2°CuletDepth 55.8%

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: $4,761 USD|Low: $2,277 USD|High: $4,875 USD|Avg: $2,935 USD|-2.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6$2,277 USD
Retailer 3$2,281 USD
Retailer 7$2,313 USD
Retailer 4$2,320 USD
Retailer 5$2,382 USD
Retailer 8$2,661 USD
Retailer 2$3,990 USD
NZ Jewellers$4,761 USD

28 data points across 8 retailers

6 retailers$2,277 USD to $4,761 USD

B+
Cheapest Retailer
-
$2,277 USD
A
Retailer 2
-
$2,281 USD
View
B+
Retailer 3
-
$2,320 USD
View
A
Retailer 4
-
$2,382 USD
View
B
Retailer 5
-
$3,990 USD
View
Most Expensive
B
NZ Jewellers
0c10475e-b2b2-4a52-9d4f-29eae574bb71 · Nov 3
$4,761 USD
View
5 more retailers have this diamond
Prices start from $2,277 USDSave up to $2,484 USD

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 Heart
$2,277 USD