Radiant|Natural|GIA

1.51ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 2215189168

Certificate GIA 2215189168

Diamond specifications and retailer prices

From $12,571 USD
A$19,341 AUD
Save $5,598 USD (31%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $18,170 USD at MOH London
View at MOH London

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2215189168. Listed at 5 retailers, with prices from $12,571 to $18,170 at MOH London, a $5,598 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2215189168
Dimensions8.51 × 5.05 × 3.44 mm
L/W Ratio1.69
Culet sizeNone
Cert comments
Pinpoints are not shown.
Top View
8.51 mm5.05 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2215189168
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.2%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $18,170 USD|Low: $10,559 USD|High: $18,170 USD|Avg: $13,548 USD|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 1, 2026
Retailer 5$10,559 USD
Retailer 3$12,571 USD
Retailer 4$12,712 USD
Retailer 7$13,807 USD
Retailer 2$14,212 USD
Retailer 6$15,234 USD
MOH London$18,170 USD

30 data points across 7 retailers

5 retailers$12,571 USD to $18,170 USD

B+
Retailer 1
-
$10,559 USD
Price last confirmed 32 days ago
B
Retailer 2
-
$12,571 USD
A$19,341 AUD
View
B
Retailer 3
-
$12,740 USD
£10,031 GBP
View
B
Retailer 4
-
$14,212 USD
€13,535 EUR
View
Most Expensive
B
MOH London
9113D6DB2 · Oct 1
$18,170 USD
£14,307 GBP
View
4 more retailers have this diamond
Prices start from $12,571 USDSave up to $5,598 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
$12,571 USD