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Heart|Natural|GIA

1.31ct G SI2 Heart Natural Diamond

FR • G/SI2 • GIA 6531940851

Certificate GIA 6531940851

Diamond specifications and retailer prices

From $3,274 SGD
As of October 31, 2026
Save $3,162 SGD (49%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $7,594 SGD at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.31ct natural heart diamond

This 1.31ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6531940851. Listed at 5 retailers as of October 31, 2026, with a 97% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.31
Carat
G
Colour
SI2
Clarity
Fair
Cut (retailer stated)

Specifications

Cut (retailer stated)Fair
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6531940851
Dimensions7.34 × 6.34 × 4.06 mm
L/W Ratio1.16
Top View
7.34 mm6.34 mm1.31 ctG / SI2
OriginNatural
CutFair
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531940851
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $6,436 SGD|Low: $3,274 SGD|High: $7,589 SGD|Avg: $4,477 SGD|-11.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2$3,274 SGD
Retailer 5$3,315 SGD
Retailer 3$3,731 SGD
Retailer 9$3,876 SGD
Retailer 4$4,410 SGD
Retailer 8$4,427 SGD
Retailer 6$4,627 SGD
Retailer 7$4,647 SGD
Retailer 1$6,436 SGD

16 data points across 9 retailers

5 retailers$3,274 SGD to $6,436 SGD

A
Cheapest Retailer
-
$3,274 SGD
B+
Retailer 2
-
$3,731 SGD
$2,918 USD
View
Retailer 3
-
$3,949 SGD
$3,089 USD
View
Price last confirmed 40 days ago
B
Retailer 4
-
$6,436 SGD
£3,964 GBP
View
Most Expensive
NZ Jewellers
9d6dd1a0-4b55-4b47-9d7e-cd16334264a0 · Sep 20
$7,594 SGD
$5,940 USD
View
Price last confirmed 42 days ago
4 more retailers have this diamond
Prices start from $3,274 SGDSave up to $3,162 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.

A
1.31ct Heart
$3,274 SGD