Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 2436825305

Certificate GIA 2436825305

Diamond specifications and retailer prices

From $6,957 USD
As of November 1, 2026
Save $7,761 USD (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $14,718 USD at NZ Jewellers · As of October 30, 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 I 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 2436825305. Listed at 12 retailers as of October 30, 2026, with prices from $6,957 to $14,718, a $7,761 spread on the same certified stone. NZ Jewellers lists it at $14,718. 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
I
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2436825305
Dimensions8.52 × 5.46 × 3.64 mm
L/W Ratio1.56
Top View
8.52 mm5.46 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2436825305
Side View
Table 71.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 66.7%

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 1
Current: $14,718 USD|Low: $6,745 USD|High: $14,718 USD|Avg: $9,313 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 5$7,358 USD
Retailer 8$7,359 USD
Retailer 7$7,972 USD
Retailer 6$8,095 USD
Retailer 3$8,284 USD
Retailer 10$8,850 USD
Retailer 9$9,199 USD
Retailer 2$9,202 USD
Retailer 4$12,263 USD
NZ Jewellers$14,718 USD

41 data points across 10 retailers

12 retailers$6,957 USD to $14,718 USD

B+
Cheapest Retailer
-
$6,957 USD
B
Retailer 2
-
$7,358 USD
View
Final sale: no returns
B
Retailer 3
-
$7,972 USD
View
B
Retailer 4
-
$8,095 USD
View
B
Retailer 5
-
$8,284 USD
£6,523 GBP
View
B
Retailer 6
-
$8,850 USD
View
B
Retailer 7
-
$8,850 USD
View
B
Retailer 8
-
$9,150 USD
View
B
Retailer 9
-
$9,199 USD
View
B
Retailer 10
-
$9,202 USD
€8,764 EUR
View
B
Retailer 11
-
$12,263 USD
£9,656 GBP
View
Most Expensive
C
NZ Jewellers
ab9b8bea-9850-4c55-a97e-6b68f5f90322 · Oct 30
$14,718 USD
View
11 more retailers have this diamond
Prices start from $6,957 USDSave up to $7,761 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
$6,957 USD