Round|Natural|GIA

1.51ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 6541094309

Certificate GIA 6541094309

Diamond specifications and retailer prices

From $2,906 USD
HK$22,700 HKD
As of October 30, 2026
Save $4,023 USD (58%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,929 USD at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6541094309. Listed at 20 retailers as of October 30, 2026, with prices from $2,906 to $6,929, a $4,023 spread on the same certified stone. NZ Jewellers lists it at $6,929. 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
J
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle36.5°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 6541094309
Dimensions7.12 × 7.21 × 4.51 mm
L/W Ratio1.01
Top View
7.12 mm7.21 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6541094309
Side View
Table 59.0%Crown 36.5°Girdle: STK-THKPavilion 40°Culet: NoneDepth 62.9%

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 30
Current: $3,804 USD|Low: $2,906 USD|High: $6,731 USD|Avg: $4,296 USD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 3$2,906 USD
Retailer 7$3,381 USD
Retailer 10$3,652 USD
Retailer 11$3,671 USD
Retailer 1$3,804 USD
Retailer 4$3,977 USD
Retailer 12$4,264 USD
Retailer 5$4,502 USD
Retailer 8$4,553 USD
Retailer 2$4,808 USD
Retailer 6$4,843 USD
Retailer 9$6,687 USD

43 data points across 12 retailers

20 retailers$2,906 USD to $6,929 USD

A
Cheapest Retailer
-
$2,906 USD
HK$22,700 HKD
A
Retailer 2
-
$3,381 USD
View
B+
Retailer 3
-
$3,500 USD
View
B+
Retailer 4
-
$3,652 USD
SGD 4,935 SGD
View
B+
Retailer 5
-
$3,671 USD
View
Final sale: no returns
B+
Retailer 6
-
$3,691 USD
SGD 4,988 SGD
View
B+
Retailer 7
-
$3,804 USD
£2,996 GBP
View
B+
Retailer 8
-
$3,858 USD
View
B+
Retailer 9
-
$3,977 USD
View
B+
Retailer 10
-
$3,977 USD
View
B+
Retailer 11
-
$3,980 USD
View
Retailer 12
-
$4,264 USD
A$6,560 AUD
View
Price last confirmed 27 days ago
B+
Retailer 13
-
$4,502 USD
€4,288 EUR
View
B+
Retailer 14
-
$4,553 USD
£3,585 GBP
View
B+
Retailer 15
-
$4,589 USD
View
Retailer 16
-
$4,808 USD
£3,786 GBP
View
Price last confirmed 31 days ago
B
Retailer 17
-
$4,843 USD
ZAR 78,233 ZAR
View
B
Retailer 18
-
$5,623 USD
View
B
Retailer 19
-
$6,687 USD
£5,265 GBP
View
Most Expensive
B
NZ Jewellers
a3e18db9-7fba-4524-aeeb-cbfa87a87723 · Oct 30
$6,929 USD
View
19 more retailers have this diamond
Prices start from $2,906 USDSave up to $4,023 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
$2,906 USD