Radiant|Natural|GIA

1.51ct H SI1 Radiant Natural Diamond

VG • H/SI1 • GIA 1568428839

Certificate GIA 1568428839

Diamond specifications and retailer prices

From $5,807 USD
As of November 6, 2026
Save $7,019 USD (55%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: $12,826 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1568428839. Listed at 32 retailers as of November 5, 2026, with prices from $5,807 to $12,826, a $7,019 spread on the same certified stone. NZ Jewellers lists it at $12,826. 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
H
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1568428839
Dimensions7.70 × 6.00 × 4.11 mm
L/W Ratio1.28
Culet sizeNone
Key to symbols
Feather, Cavity, Indented Natural
Top View
7.70 mm6.00 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1568428839
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.5%

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 6
Current: $12,826 USD|Low: $5,807 USD|High: $12,826 USD|Avg: $7,324 USD
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
Retailer 28
Retailer 29
Retailer 30
Retailer 31
November 7, 2026
Retailer 4$5,807 USD
Retailer 12$5,940 USD
Retailer 6$6,059 USD
Retailer 7$6,066 USD
Retailer 31$6,142 USD
Retailer 26$6,197 USD
Retailer 11$6,413 USD
Retailer 15$6,413 USD
Retailer 16$6,435 USD
Retailer 9$6,604 USD
Retailer 13$6,814 USD
Retailer 18$6,814 USD
Retailer 8$6,831 USD
Retailer 20$6,948 USD
Retailer 19$7,055 USD
Retailer 17$7,078 USD
Retailer 2$7,159 USD
Retailer 24$7,187 USD
Retailer 21$7,196 USD
Retailer 22$7,196 USD
Retailer 25$7,600 USD
Retailer 5$7,700 USD
Retailer 23$7,700 USD
Retailer 29$7,729 USD
Retailer 14$7,804 USD
Retailer 27$7,898 USD
Retailer 10$7,960 USD
Retailer 3$8,017 USD
Retailer 28$9,357 USD
Retailer 30$10,688 USD
NZ Jewellers$12,826 USD

10 data points across 31 retailers

32 retailers$5,807 USD to $12,826 USD

B+
Cheapest Retailer
-
$5,807 USD
B+
Retailer 2
-
$5,940 USD
View
B+
Retailer 3
-
$5,955 USD
View
B+
Retailer 4
-
$6,059 USD
View
B+
Retailer 5
-
$6,066 USD
View
B+
Retailer 6
-
$6,142 USD
View
B+
Retailer 7
-
$6,197 USD
View
Retailer 8
-
$6,413 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$6,413 USD
View
Final sale: no returns
B+
Retailer 10
-
$6,435 USD
View
B+
Retailer 11
-
$6,604 USD
View
B+
Retailer 12
-
$6,814 USD
View
B+
Retailer 13
-
$6,814 USD
View
B+
Retailer 14
-
$6,831 USD
View
B
Retailer 15
-
$6,948 USD
View
B
Retailer 16
-
$7,055 USD
View
B
Retailer 17
-
$7,078 USD
View
B+
Retailer 18
-
$7,159 USD
View
B+
Retailer 19
-
$7,187 USD
View
B
Retailer 20
-
$7,196 USD
View
B
Retailer 21
-
$7,196 USD
View
B
Retailer 22
-
$7,600 USD
View
B
Retailer 23
-
$7,700 USD
View
B
Retailer 24
-
$7,700 USD
View
B
Retailer 25
-
$7,729 USD
View
B
Retailer 26
-
$7,804 USD
View
B
Retailer 27
-
$7,898 USD
View
B
Retailer 28
-
$7,960 USD
View
B
Retailer 29
-
$8,017 USD
View
B
Retailer 30
-
$9,357 USD
View
B
Retailer 31
-
$10,688 USD
View
Most Expensive
C
NZ Jewellers
f114e483-5814-48b5-9cb6-75a56426bb52 · Nov 5
$12,826 USD
View
31 more retailers have this diamond
Prices start from $5,807 USDSave up to $7,019 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.

B+
1.51ct Radiant
$5,807 USD