Heart|Natural|GIA

1.51ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 1189095050

Certificate GIA 1189095050

Diamond specifications and retailer prices

From $6,703 USD
As of November 5, 2026
Save $1,891 USD (22%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $15,115 USD at NZ Jewellers · As of September 30, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1189095050. Listed at 10 retailers as of November 5, 2026, with a 28% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1189095050
Dimensions8.03 × 7.28 × 4.00 mm
L/W Ratio1.10
Top View
8.03 mm7.28 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1189095050
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 55.0%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $8,594 USD|Low: $6,703 USD|High: $12,745 USD|Avg: $8,490 USD|+6.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 3$6,703 USD
Retailer 4$6,857 USD
Retailer 10$6,927 USD
Retailer 5$7,045 USD
Retailer 8$7,076 USD
Retailer 2$8,051 USD
Retailer 1$8,594 USD
Retailer 9$8,618 USD
Retailer 12$9,447 USD
Retailer 6$9,790 USD
Retailer 11$9,951 USD
Retailer 7$12,712 USD

37 data points across 12 retailers

10 retailers$6,703 USD to $8,594 USD

B+
Cheapest Retailer
-
$6,703 USD
B+
Retailer 2
-
$7,134 USD
View
Retailer 3
-
$7,557 USD
View
Price last confirmed 29 days ago
Retailer 4
-
$8,187 USD
View
Price last confirmed 29 days ago
Retailer 5
-
$8,313 USD
View
Price last confirmed 36 days ago
B
Retailer 6
-
$8,594 USD
View
Retailer 7
-
$9,447 USD
View
Price last confirmed 38 days ago
Retailer 8
-
$9,951 USD
View
Price last confirmed 29 days ago
Retailer 9
-
$12,712 USD
View
Price last confirmed 29 days ago
Most Expensive
NZ Jewellers
28917ac2-67af-47a1-865a-d4f4dcb9d610 · Sep 30
$15,115 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from $6,703 USDSave up to $1,891 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.

B+
1.51ct Heart
$6,703 USD