Radiant|Natural|GIA

1.51ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 5563373270

Certificate GIA 5563373270

Diamond specifications and retailer prices

From $6,278 USD
SGD 8,484 SGD
Save $4,541 USD (42%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $10,819 USD at With Clarity
View at With Clarity

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5563373270. Listed at 12 retailers, with prices from $6,278 to $10,819 at With Clarity, a $4,541 spread on the same certified stone. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5563373270
Dimensions7.97 × 5.78 × 3.90 mm
L/W Ratio1.38
Culet sizeNone
Top View
7.97 mm5.78 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5563373270
Side View
Table 69.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.4%

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: $7,907 USD|Low: $6,278 USD|High: $10,819 USD|Avg: $7,449 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
October 1, 2026
Retailer 10$6,278 USD
Retailer 4$6,395 USD
Retailer 9$6,643 USD
Retailer 8$7,030 USD
Retailer 5$7,040 USD
Retailer 7$7,851 USD
Retailer 3$7,884 USD
Retailer 1$7,907 USD
Retailer 2$8,016 USD
Retailer 6$8,900 USD
With Clarity$10,819 USD

7 data points across 11 retailers

12 retailers$6,278 USD to $10,819 USD

B+
Cheapest Retailer
-
$6,278 USD
SGD 8,484 SGD
B+
Retailer 2
-
$6,395 USD
View
B+
Retailer 3
-
$6,495 USD
SGD 8,777 SGD
View
B+
Retailer 4
-
$6,643 USD
View
B
Retailer 5
-
$7,030 USD
View
B
Retailer 6
-
$7,055 USD
£5,555 GBP
View
B
Retailer 7
-
$7,851 USD
View
B
Retailer 8
-
$7,884 USD
€7,509 EUR
View
B
Retailer 9
-
$7,907 USD
View
B
Retailer 10
-
$8,016 USD
View
B
Retailer 11
-
$8,900 USD
View
Most Expensive
C
With Clarity
5563373270 · Oct 1
$10,819 USD
View
11 more retailers have this diamond
Prices start from $6,278 USDSave up to $4,541 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
$6,278 USD