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Round|Natural|GIA

1.51ct F SI2 Round Natural Diamond

GD • F/SI2 • GIA 6501387534

Certificate GIA 6501387534

Diamond specifications and retailer prices

From $3,034 USD
HK$23,700 HKD
As of November 1, 2026
Save $3,948 USD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,982 USD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by GIA 6501387534. Listed at 14 retailers as of November 1, 2026, with prices from $3,034 to $6,982, a $3,948 spread on the same certified stone. NZ Jewellers lists it at $6,982. 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

1.51
Carat
F
Color
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle40°
Pavilion angle39.6°
OriginNatural
Grading LabGIA
CertificateGIA 6501387534
Dimensions7.00 × 6.94 × 4.62 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.00 mm6.94 mm1.51 ctF / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6501387534
Side View
Table 55.0%Crown 40°Girdle: THK-VTKPavilion 39.6°Culet: NoneDepth 66.6%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $6,982 USD|Low: $2,921 USD|High: $7,326 USD|Avg: $4,111 USD|-4.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 10$3,034 USD
Retailer 13$3,069 USD
Retailer 3$3,145 USD
Retailer 9$3,192 USD
Retailer 11$3,223 USD
Retailer 4$3,351 USD
Retailer 5$3,630 USD
Retailer 14$3,630 USD
Retailer 15$3,770 USD
Retailer 7$4,175 USD
Retailer 12$4,189 USD
Retailer 2$4,404 USD
Retailer 6$4,577 USD
Retailer 8$6,702 USD
NZ Jewellers$6,982 USD

36 data points across 15 retailers

14 retailers$3,034 USD to $6,982 USD

A
Cheapest Retailer
-
$3,034 USD
HK$23,700 HKD
A
Retailer 2
-
$3,069 USD
View
A
Retailer 3
-
$3,145 USD
View
A
Retailer 4
-
$3,192 USD
View
A
Retailer 5
-
$3,223 USD
View
B+
Retailer 6
-
$3,351 USD
View
Final sale: no returns
B+
Retailer 7
-
$3,630 USD
View
B+
Retailer 8
-
$3,630 USD
View
B+
Retailer 9
-
$3,770 USD
View
B+
Retailer 10
-
$4,189 USD
View
B+
Retailer 11
-
$4,404 USD
€4,194 EUR
View
Retailer 12
-
$4,577 USD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
$6,702 USD
£5,277 GBP
View
Most Expensive
B+
NZ Jewellers
2152540f-a55c-4b61-ad3a-67354a5952d5 · Nov 2
$6,982 USD
View
13 more retailers have this diamond
Prices start from $3,034 USDSave up to $3,948 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.

A
1.51ct Round
$3,034 USD