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 $8,591 SGD
As of November 5, 2026
Save $2,424 SGD (22%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $19,371 SGD 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: $11,014 SGD|Low: $8,591 SGD|High: $16,334 SGD|Avg: $10,882 SGD|+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$8,591 SGD
Retailer 4$8,788 SGD
Retailer 10$8,878 SGD
Retailer 5$9,029 SGD
Retailer 8$9,069 SGD
Retailer 2$10,318 SGD
Retailer 1$11,014 SGD
Retailer 9$11,045 SGD
Retailer 12$12,107 SGD
Retailer 6$12,547 SGD
Retailer 11$12,753 SGD
Retailer 7$16,292 SGD

36 data points across 12 retailers

10 retailers$8,591 SGD to $11,014 SGD

B+
Cheapest Retailer
-
$8,591 SGD
B+
Retailer 2
-
$9,143 SGD
View
Retailer 3
-
$9,685 SGD
View
Price last confirmed 30 days ago
Retailer 4
-
$10,492 SGD
View
Price last confirmed 30 days ago
Retailer 5
-
$10,654 SGD
View
Price last confirmed 37 days ago
B
Retailer 6
-
$11,014 SGD
View
Retailer 7
-
$12,107 SGD
View
Price last confirmed 39 days ago
Retailer 8
-
$12,753 SGD
View
Price last confirmed 30 days ago
Retailer 9
-
$16,292 SGD
View
Price last confirmed 30 days ago
Most Expensive
NZ Jewellers
28917ac2-67af-47a1-865a-d4f4dcb9d610 · Sep 30
$19,371 SGD
$15,115 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from $8,591 SGDSave up to $2,424 SGD

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
$8,591 SGD