Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 6227537173

Certificate GIA 6227537173

Diamond specifications and retailer prices

From $6,974 USD
Save $7,731 USD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $14,705 USD at NZ Jewellers
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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6227537173. Listed at 15 retailers, with prices from $6,974 to $14,705 at NZ Jewellers, a $7,731 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
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6227537173
Dimensions7.63 × 5.68 × 4.01 mm
L/W Ratio1.34
Top View
7.63 mm5.68 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6227537173
Side View
Table 69.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 70.6%

Caratlytics Score

How it works →
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: Sep 28
Current: $14,705 USD|Low: $6,874 USD|High: $14,705 USD|Avg: $8,908 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
September 28, 2026
Retailer 13$6,974 USD
Retailer 11$7,352 USD
Retailer 4$7,832 USD
Retailer 14$7,965 USD
Retailer 10$8,121 USD
Retailer 9$8,286 USD
Retailer 5$8,660 USD
Retailer 6$8,660 USD
Retailer 7$8,950 USD
Retailer 12$9,191 USD
Retailer 8$9,409 USD
Retailer 15$9,683 USD
Retailer 3$10,481 USD
Retailer 2$12,400 USD
NZ Jewellers$14,705 USD

31 data points across 15 retailers

15 retailers$6,974 USD to $14,705 USD

B+
Cheapest Retailer
-
$6,974 USD
B
Retailer 2
-
$7,352 USD
View
B
Retailer 3
-
$7,832 USD
View
B
Retailer 4
-
$7,965 USD
View
B
Retailer 5
-
$8,121 USD
View
B
Retailer 6
-
$8,286 USD
£6,525 GBP
View
B
Retailer 7
-
$8,660 USD
View
B
Retailer 8
-
$8,660 USD
View
B
Retailer 9
-
$8,950 USD
View
Price last confirmed 12 days ago
B
Retailer 10
-
$9,191 USD
View
B
Retailer 11
-
$9,409 USD
€8,961 EUR
View
B
Retailer 12
-
$9,683 USD
View
B
Retailer 13
-
$10,481 USD
ZAR 169,318 ZAR
View
Price last confirmed 42 days ago
B
Retailer 14
-
$12,400 USD
£9,764 GBP
View
Most Expensive
B
NZ Jewellers
26f494d9-4f0f-4a17-8632-81ec33687946 · Sep 28
$14,705 USD
View
14 more retailers have this diamond
Prices start from $6,974 USDSave up to $7,731 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
$6,974 USD