Radiant|Natural|GIA

1.51ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 1357781607

Certificate GIA 1357781607

Diamond specifications and retailer prices

From $8,638 USD
Save $2,964 USD (26%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $11,960 USD at Jared
View at Jared

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1357781607. Listed at 6 retailers, with a 34% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1357781607
Dimensions7.03 × 5.71 × 4.08 mm
L/W Ratio1.23
Culet sizeNone
Top View
7.03 mm5.71 mm1.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1357781607
Side View
Table 68.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 71.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $11,960 USD|Low: $8,638 USD|High: $17,639 USD|Avg: $11,933 USD
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
September 29, 2026
Retailer 3$8,638 USD
Retailer 7$9,133 USD
Retailer 6$11,570 USD
Retailer 8$11,570 USD
Retailer 2$11,576 USD
Retailer 5$11,735 USD
Jared$11,960 USD
Retailer 4$17,639 USD

27 data points across 8 retailers

6 retailers$8,638 USD to $11,602 USD

B+
Cheapest Retailer
-
$8,638 USD
B+
Retailer 2
-
$9,133 USD
View
B
Retailer 3
-
$11,570 USD
View
B
Retailer 4
-
$11,570 USD
View
B
Retailer 5
-
$11,602 USD
£9,135 GBP
View
Most Expensive
B
Jared
147088695 · Sep 20
$11,960 USD
View
Price last confirmed 11 days ago
5 more retailers have this diamond
Prices start from $8,638 USDSave up to $2,964 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.

B+
1.51ct Radiant
$8,638 USD