Round|Natural|GIA

1.51ct D I1 Round Natural Diamond

VG • D/I1 • GIA 6551703440

Certificate GIA 6551703440

Diamond specifications and retailer prices

From $4,160 USD
HK$32,500 HKD
As of October 31, 2026
Save $4,995 USD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,155 USD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and I1 clarity (included), with a very-good cut grade and certified by GIA 6551703440. Listed at 11 retailers as of October 26, 2026, with prices from $4,160 to $9,155, a $4,995 spread on the same certified stone. Wholesale Diamonds Direct lists it at $9,155. 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
D
Color
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6551703440
Dimensions7.07 × 7.16 × 4.63 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Knot, Needle, Indented Natural
Top View
7.07 mm7.16 mm1.51 ctD / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551703440
Side View
Table 57.0%Crown 37.5°Girdle: STK-THKPavilion 40.8°Culet: NoneDepth 65.0%

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: Oct 31
Current: $4,240 USD|Low: $4,122 USD|High: $10,170 USD|Avg: $6,546 USD|-12.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
October 31, 2026
Retailer 3$4,160 USD
Retailer 1$4,240 USD
Retailer 2$4,683 USD
Retailer 7$5,484 USD
Retailer 8$6,081 USD
Retailer 9$6,081 USD
Retailer 4$6,195 USD
Retailer 6$6,662 USD
Retailer 5$8,979 USD
Wholesale Diamonds Direct$9,155 USD

45 data points across 10 retailers

11 retailers$4,160 USD to $9,155 USD

A
Cheapest Retailer
-
$4,160 USD
HK$32,500 HKD
A
Retailer 2
-
$4,240 USD
₹403,768 INR
View
B+
Retailer 3
-
$4,683 USD
View
B+
Retailer 4
-
$5,484 USD
View
B+
Retailer 5
-
$6,081 USD
View
B+
Retailer 6
-
$6,081 USD
View
B+
Retailer 7
-
$6,081 USD
View
B+
Retailer 8
-
$6,195 USD
View
B+
Retailer 9
-
$6,662 USD
€6,345 EUR
View
B
Retailer 10
-
$8,979 USD
View
Most Expensive
B
Wholesale Diamonds Direct
257502714 · Oct 26
$9,155 USD
View
10 more retailers have this diamond
Prices start from $4,160 USDSave up to $4,995 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
$4,160 USD