CaratHunter
Plans
Heart|Natural|GIA

1.37ct F SI2 Heart Natural Diamond

GD • F/SI2 • GIA 354

Certificate GIA 354

Diamond specifications and retailer prices

From $4,690 SGD
$3,667 USD
As of November 2, 2026
Save $1,214 SGD (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,903 SGD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.37ct natural heart diamond

This 1.37ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of October 31, 2026, with prices from $4,690 to $5,903, a $1,214 spread on the same certified stone. Blue Nile lists it at $5,903. 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

1.37
Carat
F
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 354
Dimensions7.84 × 8.31 × 3.88 mm
L/W Ratio1.06
Top View
7.84 mm8.31 mm1.37 ctF / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 354
Side View
Table 59.0%CrownGirdle: XTN-STKPavilionCulet: NoneDepth 46.7%

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 2
Current: $5,903 SGD|Low: $4,690 SGD|High: $5,903 SGD|Avg: $5,024 SGD
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2$4,690 SGD
Retailer 3$4,918 SGD
Blue Nile$5,903 SGD

2 data points across 3 retailers

3 retailers$4,690 SGD to $5,903 SGD

B+
Cheapest Retailer
-
$4,690 SGD
$3,667 USD
B
Retailer 2
-
$4,918 SGD
$3,845 USD
View
Most Expensive
B
Blue Nile
24089473 · Oct 31
$5,903 SGD
$4,616 USD
View
2 more retailers have this diamond
Prices start from $4,690 SGDSave up to $1,214 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+
1.37ct Heart
$4,690 SGD