CaratHunter
Plans
Heart|Natural|GIA

1.51ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 1189095050

Certificate GIA 1189095050

Diamond specifications and retailer prices

From $12,092 NZD
As of November 5, 2026
Save $3,411 NZD (22%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $27,266 NZD 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $15,503 NZD|Low: $12,092 NZD|High: $22,991 NZD|Avg: $15,317 NZD|+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$12,092 NZD
Retailer 4$12,369 NZD
Retailer 10$12,496 NZD
Retailer 5$12,708 NZD
Retailer 8$12,764 NZD
Retailer 2$14,523 NZD
Retailer 1$15,503 NZD
Retailer 9$15,546 NZD
Retailer 12$17,041 NZD
Retailer 6$17,660 NZD
Retailer 11$17,951 NZD
Retailer 7$22,931 NZD

36 data points across 12 retailers

10 retailers$12,092 NZD to $15,503 NZD

B+
Cheapest Retailer
-
$12,092 NZD
B+
Retailer 2
-
$12,869 NZD
View
Retailer 3
-
$13,632 NZD
View
Price last confirmed 30 days ago
Retailer 4
-
$14,769 NZD
View
Price last confirmed 30 days ago
Retailer 5
-
$14,996 NZD
View
Price last confirmed 37 days ago
B
Retailer 6
-
$15,503 NZD
View
Retailer 7
-
$17,041 NZD
View
Price last confirmed 39 days ago
Retailer 8
-
$17,951 NZD
View
Price last confirmed 30 days ago
Retailer 9
-
$22,931 NZD
View
Price last confirmed 30 days ago
Most Expensive
NZ Jewellers
28917ac2-67af-47a1-865a-d4f4dcb9d610 · Sep 30
$27,266 NZD
$15,115 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from $12,092 NZDSave up to $3,411 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
$12,092 NZD