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Round|Lab Grown|GIA

1.70ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • GIA 2456007545

Certificate GIA 2456007545

Diamond specifications and retailer prices

From $394 USD
As of October 29, 2026
Save $1,517 USD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,911 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.7ct lab-grown round diamond

This 1.7ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2456007545. Listed at 16 retailers as of October 26, 2026, with prices from $394 to $1,911, a $1,517 spread on the same certified stone. MOH London lists it at $1,911. 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

1.70
Carat
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabGIA
CertificateGIA 2456007545
Dimensions7.65 × 7.61 × 4.74 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.65 mm7.61 mm1.70 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2456007545
Side View
Table 57.0%Crown 34.5°Girdle: NUL-NULPavilion 41.2°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,911 USD|Low: $378 USD|High: $1,932 USD|Avg: $886 USD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 9$394 USD
Retailer 11$488 USD
Retailer 8$662 USD
Retailer 2$726 USD
Retailer 3$739 USD
Retailer 4$765 USD
Retailer 5$790 USD
Retailer 7$890 USD
Retailer 10$1,150 USD
Retailer 6$1,182 USD
MOH London$1,911 USD

41 data points across 11 retailers

16 retailers$394 USD to $1,911 USD

A
Cheapest Retailer
-
$394 USD
A
Retailer 2
-
$441 USD
View
A
Retailer 3
-
$488 USD
View
A
Retailer 4
-
$488 USD
View
A
Retailer 5
-
$538 USD
HK$4,200 HKD
View
B+
Retailer 6
-
$662 USD
View
B+
Retailer 7
-
$726 USD
£572 GBP
View
B+
Retailer 8
-
$739 USD
View
B+
Retailer 9
-
$765 USD
£603 GBP
View
B+
Retailer 10
-
$790 USD
€752 EUR
View
B+
Retailer 11
-
$873 USD
View
B+
Retailer 12
-
$890 USD
View
B
Retailer 13
-
$1,150 USD
View
B
Retailer 14
-
$1,182 USD
View
B
Retailer 15
-
$1,570 USD
View
Most Expensive
B
MOH London
2456007545 · Oct 26
$1,911 USD
£1,505 GBP
View
15 more retailers have this diamond
Prices start from $394 USDSave up to $1,517 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.

A
1.70ct Round
$394 USD